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Sahu P, Ali SKM, Shenoy KT, Arvind A, Banerjee D, Kumar S, Manohar S, Bhatt K. Understanding the correlation of microscopic structure and macroscopic properties of multi-component glass through atomistic simulations. J CHEM SCI 2023. [DOI: 10.1007/s12039-023-02143-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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2
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Revealing the relationship between liquid fragility and medium-range order in silicate glasses. Nat Commun 2023; 14:13. [PMID: 36596825 PMCID: PMC9810649 DOI: 10.1038/s41467-022-35711-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/21/2022] [Indexed: 01/04/2023] Open
Abstract
Despite decades of studies, the nature of the glass transition remains elusive. In particular, the sharpness of the dynamical arrest of a melt at the glass transition is captured by its fragility. Here, we reveal that fragility is governed by the medium-range order structure. Based on neutron-diffraction data for a series of aluminosilicate glasses, we propose a measurable structural parameter that features a strong inverse correlation with fragility, namely, the average medium-range distance (MRD). We use in-situ high-temperature neutron-scattering data to discuss the physical origin of this correlation. We argue that glasses exhibiting low MRD values present an excess of small network rings. Such rings are unstable and deform more readily with changes in temperature, which tends to increase fragility. These results reveal that the sharpness of the dynamical arrest experienced by a silicate glass at the glass transition is surprisingly encoded into the stability of rings in its network.
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3
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Densification in transparent SiO 2 glasses prepared by spark plasma sintering. Sci Rep 2022; 12:14761. [PMID: 36042246 PMCID: PMC9427799 DOI: 10.1038/s41598-022-18892-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022] Open
Abstract
Recently, spark plasma sintering (SPS) has become an attractive method for the preparation of solid-state ceramics. As SPS is a pressure-assisted low-temperature process, it is important to examine the effects of temperature and pressure on the structural properties of the prepared samples. In the present study, we examined the correlation between the preparation conditions and the physical and structural properties of SiO2 glasses prepared by SPS. Compared with the conventional SiO2 glass, the SPS-SiO2 glasses exhibit a higher density and elastic modulus, but a lower-height first sharp diffraction peak of the X-ray total structure factor. Micro-Raman and micro-IR spectra suggest the formation of heterogeneous regions at the interface between the SiO2 powders and graphite die. Considering the defect formation observed in optical absorption spectra, reduction reaction mainly affects the densification of SPS-SiO2 glass. Hence, the reaction at the interface is important for tailoring the structure and physical properties of solid-state materials prepared by the SPS technique.
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4
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Kirchner KA, Cassar DR, Zanotto ED, Ono M, Kim SH, Doss K, Bødker ML, Smedskjaer MM, Kohara S, Tang L, Bauchy M, Wilkinson CJ, Yang Y, Welch RS, Mancini M, Mauro JC. Beyond the Average: Spatial and Temporal Fluctuations in Oxide Glass-Forming Systems. Chem Rev 2022; 123:1774-1840. [PMID: 35511603 DOI: 10.1021/acs.chemrev.1c00974] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Atomic structure dictates the performance of all materials systems; the characteristic of disordered materials is the significance of spatial and temporal fluctuations on composition-structure-property-performance relationships. Glass has a disordered atomic arrangement, which induces localized distributions in physical properties that are conventionally defined by average values. Quantifying these statistical distributions (including variances, fluctuations, and heterogeneities) is necessary to describe the complexity of glass-forming systems. Only recently have rigorous theories been developed to predict heterogeneities to manipulate and optimize glass properties. This article provides a comprehensive review of experimental, computational, and theoretical approaches to characterize and demonstrate the effects of short-, medium-, and long-range statistical fluctuations on physical properties (e.g., thermodynamic, kinetic, mechanical, and optical) and processes (e.g., relaxation, crystallization, and phase separation), focusing primarily on commercially relevant oxide glasses. Rigorous investigations of fluctuations enable researchers to improve the fundamental understanding of the chemistry and physics governing glass-forming systems and optimize structure-property-performance relationships for next-generation technological applications of glass, including damage-resistant electronic displays, safer pharmaceutical vials to store and transport vaccines, and lower-attenuation fiber optics. We invite the reader to join us in exploring what can be discovered by going beyond the average.
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Affiliation(s)
- Katelyn A Kirchner
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Daniel R Cassar
- Department of Materials Engineering, Federal University of São Carlos, São Carlos, Sao Paulo 13565-905, Brazil
- Ilum School of Science, Brazilian Center for Research in Energy and Materials, Campinas, Sao Paulo 13083-970, Brazil
| | - Edgar D Zanotto
- Department of Materials Engineering, Federal University of São Carlos, São Carlos, Sao Paulo 13565-905, Brazil
| | - Madoka Ono
- Research Institute for Electronic Science, Hokkaido University, Sapporo, Hokkaido 001-0021, Japan
- Materials Integration Laboratories, AGC Incorporated, Yokohama, Kanagawa 230-0045, Japan
| | - Seong H Kim
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Karan Doss
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Mikkel L Bødker
- Department of Chemistry and Bioscience, Aalborg University, Aalborg 9220, Denmark
| | - Morten M Smedskjaer
- Department of Chemistry and Bioscience, Aalborg University, Aalborg 9220, Denmark
| | - Shinji Kohara
- Research Center for Advanced Measurement and Characterization National Institute for Materials Science, 1-2-1, Sengen, Tsukuba, Ibaraki 305-0047, Japan
| | - Longwen Tang
- Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, United States
| | - Mathieu Bauchy
- Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, United States
| | - Collin J Wilkinson
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Research and Development, GlassWRX, Beaufort, South Carolina 29906, United States
| | - Yongjian Yang
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Rebecca S Welch
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Matthew Mancini
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - John C Mauro
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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5
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Kuo PH, Du J. Atomistic Understanding of Ion Exchange Strengthening of Boroaluminosilicate Glasses: Insights from Molecular Dynamics Simulations and QSPR Analysis. J Phys Chem B 2022; 126:2060-2072. [PMID: 35201778 DOI: 10.1021/acs.jpcb.1c10928] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Ion exchange (IOX) is an effective and widely used method to enhance mechanical properties of various glass products ranging from the touch screen of consumer electronics to window shields of airplanes and spacecrafts. IOX or chemical strengthening is achieved through the creation of a compressive surface layer on the glass product. Although widely studied experimentally, the fundamental understanding of the IOX strengthening process is still limited. In this work, we have applied large-scale atomistic simulations to understand IOX-induced mechanical property changes and their relation to the glass composition and structural characteristics. Two series of borosilicate glasses are studied to elucidate the composition effect, with boron oxide for silica and alumina for silica substitutions, respectively, on the mechanical properties of different levels of K+ to Na+ ion exchanges by using molecular dynamics (MD) simulations with a set of recently developed effective partial charge potentials. The linear network dilation coefficient (LNDC), a common measure of IOX behaviors, was calculated for each of the glass compositions. Quantitative structural property relationship (QSPR) analysis based on the MD-generated structural features was used to establish the structure-property correlations of mechanical and other properties. The results show strong composition dependence of the LNDC, hence the suitability of IOX strengthening. This behavior is discussed based on glass structure features of the glasses. It was found that glass compositions with a higher amount of mixed glass formers, higher network connectivity, and less complex components tend to show higher calculated LNDC and higher surface compressive stress. MD simulations, in combination with QSPR analysis, can thus provide atomistic insights into how the glass composition and structural characteristics affect IOX behaviors.
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Affiliation(s)
- Po-Hsuen Kuo
- Department of Material Science and Engineering, University of North Texas, Denton, Texas 76203, United States
| | - Jincheng Du
- Department of Material Science and Engineering, University of North Texas, Denton, Texas 76203, United States
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6
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Configurational Entropy Relaxation of Silica Glass-Molecular Dynamics Simulations. ENTROPY 2021; 23:e23070885. [PMID: 34356426 PMCID: PMC8305701 DOI: 10.3390/e23070885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/23/2021] [Accepted: 07/08/2021] [Indexed: 11/17/2022]
Abstract
Vitreous silica was modelled using molecular dynamics (MD). The glass structure was transferred into an undirected graph and decomposed into disjoint structural units that were ideally mixed to calculate the configurational entropy. The Debye relaxation model was suggested to simulate the evolution of entropy during the cooling of the system. It was found that the relaxation of the configurational entropy of MD corresponds to the effective cooling rate of 6.3 × 106 Ks−1 and its extrapolation to 0.33 Ks−1 mimics the glass transition with Tg; close to the experimental value. Debye relaxation correctly describes the observed MD evolution of configurational entropy and explains the existence of freezing-in temperature and the shape of the curve in the transition region.
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7
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Liu X, Li X, Wang J, Feng S, Wang LM. Unveiling the strong dependence of the α-relaxation dispersion on mixing thermodynamics in binary glass-forming liquids. Phys Chem Chem Phys 2021; 23:5644-5651. [PMID: 33656027 DOI: 10.1039/d0cp06358d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural α-relaxation dispersion in binary molecular glass forming mixtures with distinct mixing enthalpy ΔHmix was investigated using enthalpic and dielectric relaxation measurements across the entire composition range. This study focused on the dependence of the relaxation dispersion on the mixing thermodynamics by determining the non-exponential exponent β, and its composition dependence. The β values determined by the enthalpic and dielectric relaxations agree well. Remarkably, it is found that the systems with positive enthalpy of mixing (exothermic, ΔHmix >0) have positive deviations in the composition dependence of β from the linear averaging of the two β values of the pure components, while negative deviations are observed for the systems with negative enthalpy of mixing (endothermic, ΔHmix <0). Furthermore, the relation between the non-exponential behaviors and entropy of mixing is discussed, revealing that the positive or negative deviation of β in its composition dependence on mixing is accompanied by the same sign of the excess entropy of mixing relative to the ideal one.
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Affiliation(s)
- Xin Liu
- State Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Xudong Li
- State Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Ji Wang
- State Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Shidong Feng
- State Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.
| | - Li-Min Wang
- State Key Lab of Metastable Materials Science and Technology, and School of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei 066004, China.
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8
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Ginzburg VV. Modeling the Glass Transition and Glassy Dynamics of Random Copolymers Using the TS2 Mean-Field Approach. Macromolecules 2021. [DOI: 10.1021/acs.macromol.1c00024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Valeriy V. Ginzburg
- Department of Chemical Engineering and Materials Science, Michigan State University, 428 S. Shaw Lane, Room 2100, East Lansing, Michigan 48824-1226, United States
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9
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Lelong G, Cormier L, Hennet L, Michel F, Rueff JP, Ablett JM, Monaco G. Lithium Borates from the Glass to the Melt: A Temperature-Induced Structural Transformation Viewed from the Boron and Oxygen Atoms. Inorg Chem 2021; 60:798-806. [PMID: 33401906 DOI: 10.1021/acs.inorgchem.0c02844] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A multiedge study of the local structure of lithium borate glasses and melts has been carried out using X-ray Raman scattering (XRS) as a function of temperature. Thanks to a wide range of compositions, from pure B2O3 up to the metaborate composition, we are able to finely interpret the modifications of the local environment of both the boron and oxygen atoms in terms of boron coordination number, formation of nonbridging oxygens (NBOs), and polymerization degree of the borate framework as a function of temperature and composition. A temperature-induced [4]B to [3]B conversion is observed above the glass transition temperature (Tg) from the glass to the melt from the triborate composition up to the metaborate composition. Two distinct melt structures are reported: a well-polymerized borate network-with few NBOs-below the triborate composition and a depolymerized borate network above the diborate composition with a rapid increase of the number of NBOs when Li2O is added. These two structurally distinct melts allow explaining the two dynamic regimes observed for lithium ion diffusion.
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Affiliation(s)
- Gérald Lelong
- Institut de Minéralogie, de Physique des Matériaux et Cosmochimie (IMPMC), Sorbonne Universités-UPMC Univ Paris 06, UMR CNRS 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 Place Jussieu, F-75005 Paris, France
| | - Laurent Cormier
- Institut de Minéralogie, de Physique des Matériaux et Cosmochimie (IMPMC), Sorbonne Universités-UPMC Univ Paris 06, UMR CNRS 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 Place Jussieu, F-75005 Paris, France
| | - Louis Hennet
- Conditions Extrêmes et Matériaux: Haute Température et Irradiation CNRS-UPR 3079, Orléans, France
| | - Florent Michel
- Institut de Minéralogie, de Physique des Matériaux et Cosmochimie (IMPMC), Sorbonne Universités-UPMC Univ Paris 06, UMR CNRS 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, 4 Place Jussieu, F-75005 Paris, France
| | - Jean-Pascal Rueff
- Laboratoire de Chimie Physique - Matière et Rayonnement, Université Pierre et Marie Curie/CNRS-UMR 7614, 75005 Paris, France.,Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, Saint Aubin, 91192 Gif sur Yvette, France
| | - James M Ablett
- Synchrotron SOLEIL, L'Orme des Merisiers, BP 48, Saint Aubin, 91192 Gif sur Yvette, France
| | - Giulio Monaco
- Physics and Astronomy Department, University of Padova, 35131 Padova, Italy
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10
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Predicting the onset temperature (T g) of Ge xSe 1-x glass transition: a feature selection based two-stage support vector regression method. Sci Bull (Beijing) 2019; 64:1195-1203. [PMID: 36659690 DOI: 10.1016/j.scib.2019.06.026] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 06/18/2019] [Accepted: 06/26/2019] [Indexed: 01/21/2023]
Abstract
Despite the usage of both experimental and topological methods, realizing a rapid and accurate measurement of the onset temperature (Tg) of GexSe1-x glass transition remains an open challenge. In this paper, a predictive model for the Tg in GexSe1-x glass system is presented by a machine learning method named feature selection based two-stage support vector regression (FSTS-SVR). Firstly, Pearson correlation coefficient (PCC) is used to select features highly correlated with Tg from the candidate features of GexSe1-x glass system. Secondly, in order to simulate the two-stage characteristic of Tg which is caused by structural variation with a turning point at x = 0.33 via the structural analysis, SVR is utilized to build predictive models for two stages separately and then the two achieved models are synthesized using a minimum error based model for Tg prediction. Compared with the topological and other methods based on SVR, the FSTS-SVR gives the highest predictive accuracy with the root mean square error (RMSE) and mean absolute percentage error (MAPE) of 10.64 K and 2.38%, respectively. This method is also expected to be more efficient for the prediction of Tg of other glass systems with the multi-stage characteristic.
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11
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Wilkinson CJ, Potter AR, Welch RS, Bragatto C, Zheng Q, Bauchy M, Affatigato M, Feller SA, Mauro JC. Topological Origins of the Mixed Alkali Effect in Glass. J Phys Chem B 2019; 123:7482-7489. [PMID: 31369267 DOI: 10.1021/acs.jpcb.9b06512] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mixed alkali effect, the deviation from expected linear property changes when alkali ions are mixed in a glass, remains a point of contention in the glass community. While several earlier models have been proposed to explain mixed alkali effects on ionic motion, models based on or containing discussion of structural aspects of mixed-alkali glasses remain rare by comparison. However, the transition-range viscosity depression effect is many orders in magnitude for mixed-alkali glasses, and the original observation of the effect (then known as the Thermometer Effect) concerned the highly anomalous temperature dependence of stress and structural relaxation time constants. With this in mind, a new structural model based on topological constraint theory is proposed herein which elucidates the origin of the mixed alkali effect as a consequence of network strain due to differing cation radii. Discussion of literature models and data alongside new molecular dynamics simulations and experimental data are presented in support of the model, with good agreement.
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Affiliation(s)
- Collin J Wilkinson
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Arron R Potter
- Department of Materials Science and Engineering , Rensselaer Polytechnic Institute , Troy , New York 12180 , United States
| | - Rebecca S Welch
- Department of Physics , Coe College , Cedar Rapids , Iowa 52402 , United States
| | - Caio Bragatto
- Department of Physics , Coe College , Cedar Rapids , Iowa 52402 , United States
| | - Qiuju Zheng
- School of Materials Science and Engineering , Qilu University of Technology , Jinan , 250353 , China
| | - Mathieu Bauchy
- Department of Civil and Environmental Engineering , University of California , Los Angeles , California 90095 , United States
| | - Mario Affatigato
- Department of Physics , Coe College , Cedar Rapids , Iowa 52402 , United States
| | - Steven A Feller
- Department of Physics , Coe College , Cedar Rapids , Iowa 52402 , United States
| | - John C Mauro
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
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12
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Wilkinson CJ, Doss K, Hahn SH, Keilbart N, Potter AR, Smith NJ, Dabo I, van Duin ACT, Kim SH, Mauro JC. Topological Control of Water Reactivity on Glass Surfaces: Evidence of a Chemically Stable Intermediate Phase. J Phys Chem Lett 2019; 10:3955-3960. [PMID: 31241951 DOI: 10.1021/acs.jpclett.9b01275] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Glass surfaces are of considerable interest due to their disproportionately large influence on the performance of glass articles in many applications. However, the behavior of glass surfaces has proven difficult to model and predict due to their complex structure and interactions with the environment. Here, the effects of glass network topology on the surface reactivity of glasses have been investigated using reactive and nonreactive force field-based molecular dynamics simulations as well as density functional theory. A topological constraint-based description for surface reactivity is developed, allowing for improved understanding of the physical and chemical origins of surface reactivity. Results show evidence for the existence of a chemically stable intermediate phase on the surface of the glass where the glass network is mechanically isostatic.
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Affiliation(s)
- Collin J Wilkinson
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Karan Doss
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Seung Ho Hahn
- Department of Mechanical Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Nathan Keilbart
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Arron R Potter
- Department of Materials Science and Engineering , Rensselaer Polytechnic Institute , Troy , New York 12180 , United States
| | - Nicholas J Smith
- Science and Technology Division , Corning Incorporated , Corning , New York 14831 , United States
- Materials Research Institute , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Ismaila Dabo
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Materials Research Institute , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Adri C T van Duin
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Department of Mechanical Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Materials Research Institute , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Department of Chemical Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Seong H Kim
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Materials Research Institute , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Department of Chemical Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - John C Mauro
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Materials Research Institute , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
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13
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Zheng Q, Zhang Y, Montazerian M, Gulbiten O, Mauro JC, Zanotto ED, Yue Y. Understanding Glass through Differential Scanning Calorimetry. Chem Rev 2019; 119:7848-7939. [DOI: 10.1021/acs.chemrev.8b00510] [Citation(s) in RCA: 154] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiuju Zheng
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Yanfei Zhang
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Maziar Montazerian
- Vitreous Materials Laboratory (LaMaV), Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), 13.565-905 São Carlos, SP, Brazil
| | - Ozgur Gulbiten
- Science and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - John C. Mauro
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Edgar D. Zanotto
- Vitreous Materials Laboratory (LaMaV), Department of Materials Engineering (DEMa), Federal University of São Carlos (UFSCar), 13.565-905 São Carlos, SP, Brazil
| | - Yuanzheng Yue
- School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
- Department of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
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14
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Bødker MS, Mauro JC, Youngman RE, Smedskjaer MM. Statistical Mechanical Modeling of Borate Glass Structure and Topology: Prediction of Superstructural Units and Glass Transition Temperature. J Phys Chem B 2019; 123:1206-1213. [PMID: 30620586 DOI: 10.1021/acs.jpcb.8b11926] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Predicting the compositional evolution of the atomic-scale structure and properties of oxide glasses is important for designing new materials for advanced applications. A statistical mechanics-based approach has recently been applied to predict the composition-structure evolution in binary phosphate glasses, while topological constraint theory (TCT) has been applied in the last decade to predict the structure-property evolution in various oxide and nonoxide glass systems. In this work, we couple these two approaches to enable quantitative predictions of the compositional dependence of glass transition temperature and the population of superstructural units. The object of the study is the lithium borate glass system because they feature interesting structural characteristics (e.g., boron anomaly), and ample structure and property data are available. In these glasses, the average coordination number of boron first increases when lithium modifiers are added and then later decreases accompanied by network depolymerization. First, on the basis of 10B nuclear magnetic resonance spectroscopy data from literature, we present a statistical description of the structural evolution in lithium borate glasses by accounting for the relative enthalpic and entropic contributions to the bonding preferences. We show that the entire glass structure evolution (both short- and intermediate-range) can be predicted based on experimental structural information for only a few glass compositions. We then show that the developed structural model can be combined with a previously established TCT model to predict the compositional evolution of the glass transition temperature. This work thus opens a new avenue for the computational design of glasses with tailored properties.
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Affiliation(s)
- Mikkel S Bødker
- Department of Chemistry and Bioscience , Aalborg University , 9220 Aalborg , Denmark
| | - John C Mauro
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Randall E Youngman
- Science and Technology Division , Corning Incorporated , Corning , New York 14831 , United States
| | - Morten M Smedskjaer
- Department of Chemistry and Bioscience , Aalborg University , 9220 Aalborg , Denmark
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15
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Wang M, Smedskjaer MM, Mauro JC, Bauchy M. Modifier clustering and avoidance principle in borosilicate glasses: A molecular dynamics study. J Chem Phys 2019; 150:044502. [PMID: 30709277 DOI: 10.1063/1.5051746] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Oxide glasses are typically described as having a random, disordered skeleton of network-forming polyhedra that are depolymerized by network-modifying cations. However, the existence of local heterogeneity or clustering within the network-forming and network-modifying species remains unclear. Here, based on molecular dynamics simulations, we investigate the atomic structure of a series of borosilicate glasses. We show that the network-modifying cations exhibit some level of clustering that depends on composition-in agreement with Greaves' modified random network model. In addition, we demonstrate the existence of some mutual avoidance among network-forming atoms, which echoes the Loewenstein avoidance principle typically observed in aluminosilicate phases. Importantly, we demonstrate that the degree of heterogeneity in the spatial distribution of the network modifiers is controlled by the level of ordering in the interconnectivity of the network formers. Specifically, the mutual avoidance of network formers is found to decrease the propensity for modifier clustering.
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Affiliation(s)
- Mengyi Wang
- Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, USA
| | - Morten M Smedskjaer
- Department of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark
| | - John C Mauro
- Department of Materials Science and Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Mathieu Bauchy
- Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, USA
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16
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Yang Y, Wilkinson CJ, Lee KH, Doss K, Bennett TD, Shin YK, van Duin ACT, Mauro JC. Prediction of the Glass Transition Temperatures of Zeolitic Imidazolate Glasses through Topological Constraint Theory. J Phys Chem Lett 2018; 9:6985-6990. [PMID: 30484656 DOI: 10.1021/acs.jpclett.8b03348] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A topological constraint model is developed to predict the compositional scaling of glass transition temperature ( Tg) in a metal-organic framework glass, agZIF-62 [Zn(Im2- xbIm x)]. A hierarchy of bond constraints is established using a combination of experimental results and molecular dynamic simulations with ReaxFF. The model can explain the topological origin of Tg as a function of the benzimidazolate concentration with an error of 3.5 K. The model is further extended to account for the effect of 5-methylbenzimidazolate, enabling calculation of a ternary diagram of Tg with a mixture of three organic ligands in an as-yet unsynthesized, hypothetical framework. We show that topological constraint theory is an effective tool for understanding the properties of metal-organic framework glasses.
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Affiliation(s)
- Yongjian Yang
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Collin J Wilkinson
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Kuo-Hao Lee
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Karan Doss
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Thomas D Bennett
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , CB3 0FS Cambridge , U.K
| | - Yun Kyung Shin
- Department of Mechanical and Nuclear Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - Adri C T van Duin
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
- Department of Mechanical and Nuclear Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
| | - John C Mauro
- Department of Materials Science and Engineering , The Pennsylvania State University , University Park , Pennsylvania 16802 , United States
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17
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Frederiksen KF, Januchta K, Mascaraque N, Youngman RE, Bauchy M, Rzoska SJ, Bockowski M, Smedskjaer MM. Structural Compromise between High Hardness and Crack Resistance in Aluminoborate Glasses. J Phys Chem B 2018; 122:6287-6295. [PMID: 29767513 DOI: 10.1021/acs.jpcb.8b02905] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Alkali aluminoborate glasses have recently been shown to exhibit a high threshold for indentation cracking compared to other bulk oxide glasses. However, to enable the use of these materials in engineering applications, there is a need to improve their hardness by tuning the chemical composition. In this study, we substitute alkaline earth for alkali network-modifying species at fixed aluminoborate base glass composition and correlate it with changes in the structure, mechanical properties, and densification behavior. We find that the increase in field strength (i.e., the charge-to-size ratio) achieved by substituting alkaline earth oxide from BaO to MgO manifests itself in a monotonic increase in several properties, such as atomic packing density, glass-transition temperature, densification ability, indentation hardness, and crack resistance. Although the use of alkaline earth oxides as modifier enables higher hardness values (increasing from 2.0 GPa for Cs to 5.8 GPa for Mg), their crack resistance is generally lower than that of the corresponding alkali aluminoborate glasses. We discuss the origin of this compromise between hardness and crack resistance in terms of the ability of the glass networks to undergo structural transformations and self-adapt under stress. We show that the extent of volume densification scales linearly with the number of pressure-induced coordination number changes of B and Al.
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Affiliation(s)
| | | | | | - Randall E Youngman
- Science and Technology Division , Corning Incorporated , Corning , New York 14831 , United States
| | - Mathieu Bauchy
- Department of Civil and Environmental Engineering , University of California , Los Angeles , California 90095 , United States
| | - Sylwester J Rzoska
- Institute of High-Pressure Physics , Polish Academy of Sciences , Warsaw 01-142 , Poland
| | - Michal Bockowski
- Institute of High-Pressure Physics , Polish Academy of Sciences , Warsaw 01-142 , Poland
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18
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Deng L, Du J. Effects of system size and cooling rate on the structure and properties of sodium borosilicate glasses from molecular dynamics simulations. J Chem Phys 2018; 148:024504. [DOI: 10.1063/1.5007083] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Lu Deng
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, USA
| | - Jincheng Du
- Department of Materials Science and Engineering, University of North Texas, Denton, Texas 76203, USA
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19
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Krishnan NMA, Wang B, Sant G, Phillips JC, Bauchy M. Revealing the Effect of Irradiation on Cement Hydrates: Evidence of a Topological Self-Organization. ACS APPLIED MATERIALS & INTERFACES 2017; 9:32377-32385. [PMID: 28870068 DOI: 10.1021/acsami.7b09405] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Despite the crucial role of concrete in the construction of nuclear power plants, the effects of radiation exposure (i.e., in the form of neutrons) on the calcium-silicate-hydrate (C-S-H, i.e., the glue of concrete) remain largely unknown. Using molecular dynamics simulations, we systematically investigate the effects of irradiation on the structure of C-S-H across a range of compositions. Expectedly, although C-S-H is more resistant to irradiation than typical crystalline silicates, such as quartz, we observe that radiation exposure affects C-S-H's structural order, silicate mean chain length, and the amount of molecular water that is present in the atomic network. By topological analysis, we show that these "structural effects" arise from a self-organization of the atomic network of C-S-H upon irradiation. This topological self-organization is driven by the (initial) presence of atomic eigenstress in the C-S-H network and is facilitated by the presence of water in the network. Overall, we show that C-S-H exhibits an optimal resistance to radiation damage when its atomic network is isostatic (at Ca/Si = 1.5). Such an improved understanding of the response of C-S-H to irradiation can pave the way to the design of durable concrete for radiation applications.
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Affiliation(s)
| | | | | | - James C Phillips
- Department of Physics and Astronomy, Rutgers, The State University of New Jersey , Piscataway, New Jersey 08854-8019, United States
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20
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Zheng Q, Mauro JC. Variability in the relaxation behavior of glass: Impact of thermal history fluctuations and fragility. J Chem Phys 2017; 146:074504. [DOI: 10.1063/1.4975760] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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21
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Sidebottom DL, Vu D. Assessing the network connectivity of modifier ions in metaphosphate glass melts: A dynamic light scattering study of Na-Zn mixtures. J Chem Phys 2016; 145:164503. [PMID: 27802655 DOI: 10.1063/1.4965815] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Photon correlation spectroscopy conducted on polymeric metaphosphate melts [NaPO3]1-y[Zn(PO3)2]y shows a systematic decrease in glass fragility as the more strongly bonding Zn cation replaces the more weakly bonding Na cation as a crosslinking agent between PO3 chains. This decrease is similar to that observed previously in Na-Al melts and the decrease in fragility for both systems is shown to be fully consistent with a recently reported universal pattern of fragility in network forming glasses as a function of network connectivity. Unique to the Na-Zn system is the appearance of an ultraslow relaxation in the dynamic structure factor (slower than the viscoelastic decay) that is not present in either Na-Al or Na-Li metaphosphate mixtures. This relaxation appears to originate from the diffusion of the Zn cation within the melt which is partially coupled to the oxide network. Taken together, these results underscore the need to distinguish between network-forming cations of high ionic bond strength that contribute to the connectivity of the oxide network and those of lower bond strength that do not contribute.
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Affiliation(s)
- D L Sidebottom
- Physics Department, Creighton University, Omaha, Nebraska 68178, USA
| | - D Vu
- Physics Department, Creighton University, Omaha, Nebraska 68178, USA
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22
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Zeng H, Ye F, Li X, Wang L, Yang B, Chen J, Zhang X, Sun L. Calculation of thermal expansion coefficient of glasses based on topological constraint theory. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2016.09.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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23
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Pignatelli I, Kumar A, Alizadeh R, Le Pape Y, Bauchy M, Sant G. A dissolution-precipitation mechanism is at the origin of concrete creep in moist environments. J Chem Phys 2016; 145:054701. [DOI: 10.1063/1.4955429] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Affiliation(s)
- Isabella Pignatelli
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, USA
| | - Aditya Kumar
- Materials Science and Engineering Department, Missouri University of Science and Technology, Rolla, Missouri 65409, USA
| | | | - Yann Le Pape
- Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Mathieu Bauchy
- Physics of AmoRphous and Inorganic Solids Laboratory (PARISlab), Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, USA
| | - Gaurav Sant
- Laboratory for the Chemistry of Construction Materials (LC2), Department of Civil and Environmental Engineering, University of California, Los Angeles, California 90095, USA
- California Nanosystems Institute (CNSI), University of California, Los Angeles, California 90095, USA
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24
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Baltisberger JH, Florian P, Keeler EG, Phyo PA, Sanders KJ, Grandinetti PJ. Modifier cation effects on (29)Si nuclear shielding anisotropies in silicate glasses. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2016; 268:95-106. [PMID: 27187210 DOI: 10.1016/j.jmr.2016.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 04/29/2016] [Accepted: 05/08/2016] [Indexed: 05/06/2023]
Abstract
We have examined variations in the (29)Si nuclear shielding tensor parameters of SiO4 tetrahedra in a series of seven alkali and alkaline earth silicate glass compositions, Cs2O·4.81 SiO2, Rb2O·3.96 SiO2, Rb2O·2.25 SiO2, K2O·4.48 SiO2, Na2O·4.74 SiO2, BaO·2.64 SiO2, and SrO·2.36 SiO2, using natural abundance (29)Si two-dimensional magic-angle flipping (MAF) experiments. Our analyses of these 2D spectra reveal a linear dependence of the (29)Si nuclear shielding anisotropy of Q((3)) sites on the Si-non-bridging oxygen bond length, which in turn depends on the cation potential and coordination of modifier cations to the non-bridging oxygen. We also demonstrate how a combination of Cu(2+) as a paramagnetic dopant combined with echo train acquisition can reduce the total experiment time of (29)Si 2D NMR measurements by two orders of magnitude, enabling higher throughput 2D NMR studies of glass structure.
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Affiliation(s)
- Jay H Baltisberger
- Division of Natural Science, Mathematics, and Nursing, Berea College, Berea, KY 40403, United States
| | - Pierre Florian
- CNRS, UPR3079 CEMHTI, 1D Avenue de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Eric G Keeler
- Department of Chemistry and Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, United States
| | - Pyae A Phyo
- Division of Natural Science, Mathematics, and Nursing, Berea College, Berea, KY 40403, United States
| | - Kevin J Sanders
- Institut des Sciences Analytiques (CNRS, ENS de Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Philip J Grandinetti
- Department of Chemistry, The Ohio State University, 120 W. 18(th) Avenue, Columbus, OH 43210-1173, United States.
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25
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Micoulaut M. Relaxation and physical aging in network glasses: a review. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2016; 79:066504. [PMID: 27213928 DOI: 10.1088/0034-4885/79/6/066504] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Recent progress in the description of glassy relaxation and aging are reviewed for the wide class of network-forming materials such as GeO2, Ge x Se1-x , silicates (SiO2-Na2O) or borates (B2O3-Li2O), all of which have an important usefulness in domestic, geological or optoelectronic applications. A brief introduction of the glass transition phenomenology is given, together with the salient features that are revealed both from theory and experiments. Standard experimental methods used for the characterization of the slowing down of the dynamics are reviewed. We then discuss the important role played by aspects of network topology and rigidity for the understanding of the relaxation of the glass transition, while also permitting analytical predictions of glass properties from simple and insightful models based on the network structure. We also emphasize the great utility of computer simulations which probe the dynamics at the molecular level, and permit the calculation of various structure-related functions in connection with glassy relaxation and the physics of aging which reveal the non-equilibrium nature of glasses. We discuss the notion of spatial variations of structure which leads to the concept of 'dynamic heterogeneities', and recent results in relation to this important topic for network glasses are also reviewed.
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Affiliation(s)
- Matthieu Micoulaut
- Paris Sorbonne Universités, LPTMC-UPMC, 4 place Jussieu, 75252 Paris cedex 05, France
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26
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Yildirim C, Raty JY, Micoulaut M. Revealing the role of molecular rigidity on the fragility evolution of glass-forming liquids. Nat Commun 2016; 7:11086. [PMID: 27025348 PMCID: PMC4820934 DOI: 10.1038/ncomms11086] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Accepted: 02/15/2016] [Indexed: 11/29/2022] Open
Abstract
If quenched fast enough, a liquid is able to avoid crystallization and will remain in a metastable supercooled state down to the glass transition, with an important increase in viscosity upon further cooling. There are important differences in the way liquids relax as they approach the glass transition, rapid or slow variation in dynamic quantities under moderate temperature changes, and a simple means to quantify such variations is provided by the concept of fragility. Here, we report molecular dynamics simulations of a typical network-forming glass, Ge-Se, and find that the relaxation behaviour of the supercooled liquid is strongly correlated to the variation of rigidity with temperature and the spatial distribution of the corresponding topological constraints, which ultimately connect to the fragility minima. This permits extending the fragility concept to aspects of topology/rigidity, and to the degree of homogeneity of the atomic-scale interactions for a variety of structural glasses.
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Affiliation(s)
- C. Yildirim
- Laboratoire de Physique Théorique de la Matière Condensée, Paris Sorbonne Universités—UPMC, Boite 121, 4, Place Jussieu, 75252 Paris Cedex 05, France
- Physique des Solides, Interfaces et Nanostructures & CESAM, B5, Université de Liège, B4000 Sart-Tilman, Belgium
| | - J.-Y. Raty
- Physique des Solides, Interfaces et Nanostructures & CESAM, B5, Université de Liège, B4000 Sart-Tilman, Belgium
| | - M. Micoulaut
- Laboratoire de Physique Théorique de la Matière Condensée, Paris Sorbonne Universités—UPMC, Boite 121, 4, Place Jussieu, 75252 Paris Cedex 05, France
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27
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Guo X, Smedskjaer MM, Mauro JC. Linking Equilibrium and Nonequilibrium Dynamics in Glass-Forming Systems. J Phys Chem B 2016; 120:3226-31. [DOI: 10.1021/acs.jpcb.6b00141] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xiaoju Guo
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - Morten M. Smedskjaer
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
- Department
of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark
| | - John C. Mauro
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
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28
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Liu W, Cook K, Canning J. Ultrahigh-Temperature Regeneration of Long Period Gratings (LPGs) in Boron-Codoped Germanosilicate Optical Fibre. SENSORS (BASEL, SWITZERLAND) 2015; 15:20659-20677. [PMID: 26307991 PMCID: PMC4570441 DOI: 10.3390/s150820659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 07/13/2015] [Accepted: 08/14/2015] [Indexed: 06/04/2023]
Abstract
The regeneration of UV-written long period gratings (LPG) in boron-codoped germanosilicate "W" fibre is demonstrated and studied. They survive temperatures over 1000 °C. Compared with regenerated FBGs fabricated in the same type of fibre, the evolution curves of LPGs during regeneration and post-annealing reveal even more detail of glass relaxation. Piece-wise temperature dependence is observed, indicating the onset of a phase transition of glass in the core and inner cladding at ~500 °C and ~250 °C, and the melting of inner cladding between 860 °C and 900 °C. An asymmetric spectral response with increasing and decreasing annealing temperature points to the complex process dependent material system response. Resonant wavelength tuning by adjusting the dwell temperature at which regeneration is undertaken is demonstrated, showing a shorter resonant wavelength and shorter time for stabilisation with higher dwell temperatures. All the regenerated LPGs are nearly strain-insensitive and cannot be tuned by applying loads during annealing as done for regenerated FBGs.
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Affiliation(s)
- Wen Liu
- interdisciplinary Photonics Laboratories (iPL), School of Chemistry, The University of Sydney, Sydney NSW 2006, Australia.
- College of Optoelectronic Science and Technology, National University of Defense Technology, Changsha 410073, China.
| | - Kevin Cook
- interdisciplinary Photonics Laboratories (iPL), School of Chemistry, The University of Sydney, Sydney NSW 2006, Australia.
| | - John Canning
- interdisciplinary Photonics Laboratories (iPL), School of Chemistry, The University of Sydney, Sydney NSW 2006, Australia.
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29
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Pacaud F, Micoulaut M. Thermodynamic precursors, liquid-liquid transitions, dynamic and topological anomalies in densified liquid germania. J Chem Phys 2015; 143:064502. [DOI: 10.1063/1.4927707] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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30
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Hermansen C, Guo X, Youngman RE, Mauro JC, Smedskjaer MM, Yue Y. Structure-topology-property correlations of sodium phosphosilicate glasses. J Chem Phys 2015; 143:064510. [DOI: 10.1063/1.4928330] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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31
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Smedskjaer MM, Mauro JC, Yue Y. Cation Diffusivity and the Mixed Network Former Effect in Borosilicate Glasses. J Phys Chem B 2015; 119:7106-15. [DOI: 10.1021/acs.jpcb.5b03520] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Morten M. Smedskjaer
- Department
of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - John C. Mauro
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - Yuanzheng Yue
- Department
of Chemistry and Bioscience, Aalborg University, DK-9220 Aalborg, Denmark
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32
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Hermansen C, Youngman RE, Wang J, Yue Y. Structural and topological aspects of borophosphate glasses and their relation to physical properties. J Chem Phys 2015; 142:184503. [DOI: 10.1063/1.4919798] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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33
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Sidebottom DL. Comment on "A model for phosphate glass topology considering the modifying ion sub-network" [J. Chem. Phys. 140, 154501 (2014)]. J Chem Phys 2015; 142:107103. [PMID: 25770565 DOI: 10.1063/1.4913760] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
In a recent paper, Hermansen, Mauro, and Yue [J. Chem. Phys. 140, 154501 (2014)] applied the temperature-dependent constraint theory to model both the glass transition temperature, Tg, and fragility, m, of a series of binary alkali phosphate glasses of the form R2OxP2O5 1-x, where R represents an alkali species. Key to their success seems to be the retention of linear constraints between the alkali ion (R(+)) and the non-bridging oxygens near Tg, which allows the model to mimic a supposed minimum for both Tg(x) and m(x) located near x = 0.2. However, the authors have overlooked several recent studies that clearly show there is no minimum in m(x). We argue that the retention of the alkali ion constraints at these temperatures is unjustified and question whether the model calculations can be revised to meet the actual experimental data. We also discuss alternative interpretations for the fragility based on two-state thermodynamics that can accurately account for its compositional dependence.
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Affiliation(s)
- David L Sidebottom
- Physics Department, Creighton University, 2500 California Plaza, Omaha, Nebraska 68178, USA
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34
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Paraschiv GL, Gomez S, Mauro JC, Wondraczek L, Yue Y, Smedskjaer MM. Hardness of Oxynitride Glasses: Topological Origin. J Phys Chem B 2015; 119:4109-15. [DOI: 10.1021/jp512235t] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Sinue Gomez
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - John C. Mauro
- Science
and Technology Division, Corning Incorporated, Corning, New York 14831, United States
| | - Lothar Wondraczek
- Otto
Schott Institute of Materials Research, University of Jena, 07743 Jena, Thuringia, Germany
| | - Yuanzheng Yue
- Department
of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark
| | - Morten M. Smedskjaer
- Department
of Chemistry and Bioscience, Aalborg University, 9220 Aalborg, Denmark
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35
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Micoulaut M, Bauchy M, Flores-Ruiz H. Topological Constraints, Rigidity Transitions, and Anomalies in Molecular Networks. MOLECULAR DYNAMICS SIMULATIONS OF DISORDERED MATERIALS 2015. [DOI: 10.1007/978-3-319-15675-0_11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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36
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Hermansen C, Rodrigues BP, Wondraczek L, Yue Y. An extended topological model for binary phosphate glasses. J Chem Phys 2014; 141:244502. [DOI: 10.1063/1.4904287] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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37
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Hasan MS, Werner-Zwanziger U, Boyd D. Composition-structure-properties relationship of strontium borate glasses for medical applications. J Biomed Mater Res A 2014; 103:2344-54. [PMID: 25366812 DOI: 10.1002/jbm.a.35361] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/15/2014] [Accepted: 10/22/2014] [Indexed: 11/06/2022]
Abstract
We have synthesized TiO2 doped strontium borate glasses, 70B2O3-(30-x)SrO-xTiO2 and 70B2 O3 -20SrO(10-x)Na2 O-xTiO2 . The composition dependence of glass structure, density, thermal properties, durability, and cytotoxicity of degradation products was studied. Digesting the glass in mineral acid and detecting the concentrations of various ions using an ICP provided the actual compositions that were 5-8% deviated from the theoretical values. The structure was investigated by means of (11)B magic angle spinning (MAS) NMR spectroscopy. DSC analyses provided the thermal properties and the degradation rates were measured by measuring the weight loss of glass disc-samples in phosphate buffered saline at 37°C in vitro. Finally, the MTT assay was used to analyze the cytotoxicity of the degradation products. The structural analysis revealed that replacing TiO2 for SrO or Na2 O increased the BO3/BO4 ratio suggesting the network-forming role of TiO2 . Thermal properties, density, and degradation rates also followed the structural changes. Varying SrO content predominantly controlled the degradation rates, which in turn controlled the ion release kinetics. A reasonable control (2-25% mass loss in 21 days) over mass loss was achieved in current study. Even though, very high concentrations (up to 5500 ppm B, and 1200 ppm Sr) of ions were released from the ternary glass compositions that saturated the degradation media in 7 days, the degradation products from ternary glass system was found noncytotoxic. However, quaternary glasses demonstrated negative affect on cell viability due to very high (7000 ppm) Na ion concentration. All the glasses investigated in current study are deemed fast degrading with further control over degradation rates, release kinetics desirable.
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Affiliation(s)
- Muhammad S Hasan
- Department of Applied Oral Sciences, School of Biomedical Engineering, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Ulrike Werner-Zwanziger
- Department of Chemistry and Institute for Research in Materials, Dalhousie University, Halifax, Nova Scotia, Canada
| | - Daniel Boyd
- Department of Applied Oral Sciences, School of Biomedical Engineering, Dalhousie University, Halifax, Nova Scotia, Canada
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Jiang Q, Zeng H, Li X, Ren J, Chen G, Liu F. Tailoring sodium silicophosphate glasses containing SiO6-octahedra through structural rules and topological principles. J Chem Phys 2014; 141:124506. [DOI: 10.1063/1.4896150] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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39
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Rodrigues BP, Wondraczek L. Cationic constraint effects in metaphosphate glasses. J Chem Phys 2014; 140:214501. [DOI: 10.1063/1.4879559] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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40
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Zeng H, Jiang Q, Liu Z, Li X, Ren J, Chen G, Liu F, Peng S. Unique Sodium Phosphosilicate Glasses Designed Through Extended Topological Constraint Theory. J Phys Chem B 2014; 118:5177-83. [DOI: 10.1021/jp5018357] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Huidan Zeng
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qi Jiang
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhao Liu
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Xiang Li
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jing Ren
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Guorong Chen
- Key
Laboratory for Ultrafine Materials of Ministry of Education, School
of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Fude Liu
- Department
of Mechanical Engineering, The University of Hong Kong, Hong Kong, China
| | - Shou Peng
- China Triumph International Engineering Company, Ltd., Shanghai 200063, China
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Hermansen C, Mauro JC, Yue Y. A model for phosphate glass topology considering the modifying ion sub-network. J Chem Phys 2014. [DOI: 10.1063/1.4870764] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ravindren S, Gunasekera K, Tucker Z, Diebold A, Boolchand P, Micoulaut M. Crucial effect of melt homogenization on the fragility of non-stoichiometric chalcogenides. J Chem Phys 2014; 140:134501. [DOI: 10.1063/1.4869107] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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43
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Chakraborty S, Boolchand P, Malki M, Micoulaut M. Designing heavy metal oxide glasses with threshold properties from network rigidity. J Chem Phys 2014; 140:014503. [DOI: 10.1063/1.4855695] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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44
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Tu W, Chen Z, Gao Y, Li Z, Zhang Y, Liu R, Tian Y, Wang LM. Glass transition and mixing thermodynamics of a binary eutectic system. Phys Chem Chem Phys 2014; 16:3586-92. [DOI: 10.1039/c3cp52868e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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45
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Jiang Q, Zeng H, Liu Z, Ren J, Chen G, Wang Z, Sun L, Zhao D. Glass transition temperature and topological constraints of sodium borophosphate glass-forming liquids. J Chem Phys 2013; 139:124502. [DOI: 10.1063/1.4821617] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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46
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Rodrigues BP, Wondraczek L. Medium-range topological constraints in binary phosphate glasses. J Chem Phys 2013; 138:244507. [DOI: 10.1063/1.4810868] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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47
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Mauro JC. Statistics of modifier distributions in mixed network glasses. J Chem Phys 2013; 138:12A522. [DOI: 10.1063/1.4773356] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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48
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He F, Ping C, Zheng Y. Viscosity and Structure of Lithium Sodium Borosilicate Glasses. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.phpro.2013.07.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Potuzak M, Welch RC, Mauro JC. Topological origin of stretched exponential relaxation in glass. J Chem Phys 2011; 135:214502. [DOI: 10.1063/1.3664744] [Citation(s) in RCA: 87] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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50
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Smedskjaer MM, Mauro JC, Youngman RE, Hogue CL, Potuzak M, Yue Y. Topological principles of borosilicate glass chemistry. J Phys Chem B 2011; 115:12930-46. [PMID: 21950415 DOI: 10.1021/jp208796b] [Citation(s) in RCA: 249] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Borosilicate glasses display a rich complexity of chemical behavior depending on the details of their composition and thermal history. Noted for their high chemical durability and thermal shock resistance, borosilicate glasses have found a variety of important uses from common household and laboratory glassware to high-tech applications such as liquid crystal displays. In this paper, we investigate the topological principles of borosilicate glass chemistry covering the extremes from pure borate to pure silicate end members. Based on NMR measurements, we present a two-state statistical mechanical model of boron speciation in which addition of network modifiers leads to a competition between the formation of nonbridging oxygen and the conversion of boron from trigonal to tetrahedral configuration. Using this model, we derive a detailed topological representation of alkali-alkaline earth-borosilicate glasses that enables the accurate prediction of properties such as glass transition temperature, liquid fragility, and hardness. The modeling approach enables an understanding of the microscopic mechanisms governing macroscopic properties. The implications of the glass topology are discussed in terms of both the temperature and thermal history dependence of the atomic bond constraints and the influence on relaxation behavior. We also observe a nonlinear evolution of the jump in isobaric heat capacity at the glass transition when substituting SiO(2) for B(2)O(3), which can be accurately predicted using a combined topological and thermodynamic modeling approach.
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Affiliation(s)
- Morten M Smedskjaer
- Science and Technology Division, Corning Incorporated, Corning, New York 14831, United States
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