1
|
Cassetta M, Giannetta B, Enrichi F, Zaccone C, Mariotto G, Giarola M, Nodari L, Zanatta M, Daldosso N. Effect of the alkali vs iron ratio on glass transition temperature and vibrational properties of synthetic basalt-like glasses. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 293:122430. [PMID: 36780741 DOI: 10.1016/j.saa.2023.122430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 11/12/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Volcanic eruptions generate huge amounts of material with a wide range of compositions and therefore different physicochemical properties. We present a combined Raman and calorimetric study carried out on four synthetic basaltic glasses with different alkali vs iron ratio which spans the typical compositions of basalts on Earth. Differential scanning calorimetry shows that changes of this ratio modify the glass transition interval whereas Raman spectra allow to gain insight about the structure of the glass in the microscopic and macroscopic range. Indeed, our Raman analysis is extended from the high frequency region, characterized by the molecular peaks, to the very low frequency region where glasses exhibit the boson peak. Spectra show a variation of the non-bridging oxygens number that affects the medium range order of the glass and the network interconnections. In the considered substitution interval, the boson peak shape is conserved while its position shift upwards. This means that increasing the alkali vs iron content, the elastic medium hardens but it does not change nature. This study emphasizes the importance of considering the full-range spectra when analysing multicomponent or natural systems with small chemical variations.
Collapse
Affiliation(s)
- Michele Cassetta
- Department of Computer Sciences, University of Verona, I-37134 Verona, Italy.
| | - Beatrice Giannetta
- Department of Biotechnology, University of Verona, I-37134 Verona, Italy
| | - Francesco Enrichi
- Department of Computer Sciences, University of Verona, I-37134 Verona, Italy
| | - Claudio Zaccone
- Department of Biotechnology, University of Verona, I-37134 Verona, Italy; National Institute of Geophysics and Volcanology, I-00143 Roma, Italy
| | - Gino Mariotto
- Department of Computer Sciences, University of Verona, I-37134 Verona, Italy
| | - Marco Giarola
- Centre for Technological Platform (CPT), University of Verona, I-37134 Verona, Italy
| | - Luca Nodari
- Institute of Condensed Matter Chemistry and Technologies for Energy, National Research Council (ICMATE-CNR), I-35127 Padova, Italy
| | - Marco Zanatta
- Department of Physics, University of Trento, I-38123 Trento, Italy
| | - Nicola Daldosso
- Department of Computer Sciences, University of Verona, I-37134 Verona, Italy
| |
Collapse
|
2
|
Benzine O, Pan Z, Calahoo C, Bockowski M, Smedskjaer MM, Schirmacher W, Wondraczek L. Vibrational disorder and densification-induced homogenization of local elasticity in silicate glasses. Sci Rep 2021; 11:24454. [PMID: 34961778 PMCID: PMC8712522 DOI: 10.1038/s41598-021-04045-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 12/14/2021] [Indexed: 11/13/2022] Open
Abstract
We report the effect of structural compaction on the statistics of elastic disorder in a silicate glass, using heterogeneous elasticity theory with the coherent potential approximation (HET-CPA) and a log-normal distribution of the spatial fluctuations of the shear modulus. The object of our study, a soda lime magnesia silicate glass, is compacted by hot-compression up to 2 GPa (corresponding to a permanent densification of ~ 5%). Using THz vibrational spectroscopic data and bulk mechanical properties as inputs, HET-CPA evaluates the degree of disorder in terms of the length-scale of elastic fluctuations and the non-affine part of the shear modulus. Permanent densification decreases the extent of non-affine elasticity, resulting in a more homogeneous distribution of strain energy, while also decreasing the correlation length of elastic heterogeneity. Complementary 29Si magic angle spinning NMR spectroscopic data provide a short-range rationale for the effect of compression on glass structure in terms of a narrowing of the Si-O-Si bond-angle and the Si-Si distance.
Collapse
Affiliation(s)
- Omar Benzine
- Otto Schott Institute of Materials Research, University of Jena, 07743, Jena, Germany
| | - Zhiwen Pan
- Otto Schott Institute of Materials Research, University of Jena, 07743, Jena, Germany
| | - Courtney Calahoo
- Otto Schott Institute of Materials Research, University of Jena, 07743, Jena, Germany
| | - Michal Bockowski
- Institute of High-Pressure Physics, Polish Academy of Sciences, 01-142, Warsaw, Poland
| | - Morten M Smedskjaer
- Department of Chemistry and Bioscience, Aalborg University, 9220, Aalborg, Denmark
| | | | - Lothar Wondraczek
- Otto Schott Institute of Materials Research, University of Jena, 07743, Jena, Germany.
| |
Collapse
|
3
|
Estimating the viscosity of volcanic melts from the vibrational properties of their parental glasses. Sci Rep 2021; 11:13072. [PMID: 34158535 PMCID: PMC8219844 DOI: 10.1038/s41598-021-92407-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Accepted: 06/10/2021] [Indexed: 02/05/2023] Open
Abstract
The numerical modelling of magma transport and volcanic eruptions requires accurate knowledge of the viscosity of magmatic liquids as a function of temperature and melt composition. However, there is growing evidence that volcanic melts can be prone to nanoscale modification and crystallization before and during viscosity measurements. This challenges the possibility of being able to quantify the crystal-free melt phase contribution to the measured viscosity. In an effort to establish an alternative route to derive the viscosity of volcanic melts based on the vibrational properties of their parental glasses, we have subjected volcanologically relevant anhydrous glasses to Brillouin and Raman spectroscopic analyses at ambient conditions. Here, we find that the ratio between bulk and shear moduli and the boson peak position embed the melt fragility. We show that these quantities allow an accurate estimation of volcanic melts at eruptive conditions, without the need for viscosity measurements. An extensive review of the literature data confirms that our result also holds for hydrous systems; this study thus provides fertile ground on which to develop new studies of the nanoscale dynamics of natural melts and its impact on the style of volcanic eruptions.
Collapse
|
4
|
Zanatta M, Cormier L, Hennet L, Petrillo C, Sacchetti F. Real-time observation of the isothermal crystallization kinetics in a deeply supercooled liquid. Sci Rep 2017; 7:43671. [PMID: 28255173 PMCID: PMC5334641 DOI: 10.1038/srep43671] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 01/26/2017] [Indexed: 11/16/2022] Open
Abstract
Below the melting temperature Tm, crystals are the stable phase of typical elemental or molecular systems. However, cooling down a liquid below Tm, crystallization is anything but inevitable. The liquid can be supercooled, eventually forming a glass below the glass transition temperature Tg. Despite their long lifetimes and the presence of strong barriers that produces an apparent stability, supercooled liquids and glasses remain intrinsically a metastable state and thermodynamically unstable towards the crystal. Here we investigated the isothermal crystallization kinetics of the prototypical strong glassformer GeO2 in the deep supercooled liquid at 1100 K, about half-way between Tm and Tg. The crystallization process has been observed through time-resolved neutron diffraction for about three days. Data show a continuous reorganization of the amorphous structure towards the alpha-quartz phase with the final material composed by crystalline domains plunged into a low-density, residual amorphous matrix. A quantitative analysis of the diffraction patterns allows determining the time evolution of the relative fractions of crystal and amorphous, that was interpreted through an empirical model for the crystallization kinetics. This approach provides a very good description of the experimental data and identifies a predator-prey-like mechanism between crystal and amorphous, where the density variation acts as a blocking barrier.
Collapse
Affiliation(s)
- M Zanatta
- Dipartimento di Informatica, Università di Verona, I-37134 Verona, Italy.,ISC-CNR c/o Dipartimento di Fisica, Sapienza Università di Roma, I-00185 Roma, Italy
| | - L Cormier
- Institut de Minéralogie, de Physique des Matériaux, et de Cosmochimie (IMPMC), Sorbonne Universités, UPMC Université Paris 06, CNRS UMR 7590, Muséum National d'Histoire Naturelle, IRD UMR 206, F-75005 Paris, France
| | - L Hennet
- Conditions Extrêmes et Matériaux: Haute Température et Irradiation, CEMHTI-CNRS, Université d'Orléans, F-45071 Orléans, France.,Laboratoire Léon Brillouin, CEA-CNRS, CEA Saclay, F-91191 Gif sur Yvette, France
| | - C Petrillo
- Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy.,IOM-CNR c/o Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy
| | - F Sacchetti
- Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy.,IOM-CNR c/o Dipartimento di Fisica e Geologia, Università di Perugia, I-06123 Perugia, Italy
| |
Collapse
|
5
|
Wang Z, Kolesnikov AI, Ito K, Podlesnyak A, Chen SH. Pressure Effect on the Boson Peak in Deeply Cooled Confined Water: Evidence of a Liquid-Liquid Transition. PHYSICAL REVIEW LETTERS 2015; 115:235701. [PMID: 26684125 DOI: 10.1103/physrevlett.115.235701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2015] [Indexed: 06/05/2023]
Abstract
The boson peak in deeply cooled water confined in nanopores is studied to examine the liquid-liquid transition (LLT). Below ∼180 K, the boson peaks at pressures P higher than ∼3.5 kbar are evidently distinct from those at low pressures by higher mean frequencies and lower heights. Moreover, the higher-P boson peaks can be rescaled to a master curve while the lower-P boson peaks can be rescaled to a different one. These phenomena agree with the existence of two liquid phases with different densities and local structures and the associated LLT in the measured (P, T) region. In addition, the P dependence of the librational band also agrees with the above conclusion.
Collapse
Affiliation(s)
- Zhe Wang
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Alexander I Kolesnikov
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Kanae Ito
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Andrey Podlesnyak
- Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - Sow-Hsin Chen
- Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| |
Collapse
|
6
|
Corezzi S, Caponi S, Rossi F, Fioretto D. Stress-Induced Modification of the Boson Peak Scaling Behavior. J Phys Chem B 2013; 117:14477-85. [DOI: 10.1021/jp4054742] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Silvia Corezzi
- Dipartimento
di Fisica, Universitá di Perugia, Via A. Pascoli, Perugia 06123, Italy
| | - Silvia Caponi
- Dipartimento
di Fisica, Universitá di Trento, Via Sommarive 14, Povo (Trento) 38123, Italy
- IOM-CNR
c/o Dipartimento di Fisica, Universitá di Perugia, Via A. Pascoli, Perugia 06123, Italy
| | - Flavio Rossi
- Dipartimento
di Fisica, Universitá di Trento, Via Sommarive 14, Povo (Trento) 38123, Italy
| | - Daniele Fioretto
- Dipartimento
di Fisica, Universitá di Perugia, Via A. Pascoli, Perugia 06123, Italy
- Centro
di Eccellenza sui Materiali Innovativi Nanostrutturati (CEMIN), Universitá di Perugia, via Elce di Sotto 8, Perugia 06123, Italy
| |
Collapse
|
7
|
Marruzzo A, Schirmacher W, Fratalocchi A, Ruocco G. Heterogeneous shear elasticity of glasses: the origin of the boson peak. Sci Rep 2013; 3:1407. [PMID: 23470597 PMCID: PMC3591752 DOI: 10.1038/srep01407] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Accepted: 02/19/2013] [Indexed: 11/09/2022] Open
Abstract
The local elasticity of glasses is known to be inhomogeneous on a microscopic scale compared to that of crystalline materials. Their vibrational spectrum strongly deviates from that expected from Debye's elasticity theory: The density of states deviates from Debye's law, the sound velocity shows a negative dispersion in the boson-peak frequency regime and there is a strong increase of the sound attenuation near the boson-peak frequency. By comparing a mean-field theory of shear-elastic heterogeneity with a large-scale simulation of a soft-sphere glass we demonstrate that the observed anomalies in glasses are caused by elastic heterogeneity. By observing that the macroscopic bulk modulus is frequency independent we show that the boson-peak-related vibrational anomalies are predominantly due to the spatially fluctuating microscopic shear stresses. It is demonstrated that the boson-peak arises from the steep increase of the sound attenuation at a frequency which marks the transition from wave-like excitations to disorder-dominated ones.
Collapse
Affiliation(s)
- Alessia Marruzzo
- Dipartimento di Fisica, Universitá di Roma La Sapienza, Roma, Italy
| | | | | | | |
Collapse
|
8
|
The Action of Ligands in the Aggregation Process of Soft Colloidal Solution Monitored by Raman Spectroscopy. FOOD BIOPHYS 2013. [DOI: 10.1007/s11483-013-9303-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
9
|
Ruta B, Baldi G, Scarponi F, Fioretto D, Giordano VM, Monaco G. Acoustic excitations in glassy sorbitol and their relation with the fragility and the boson peak. J Chem Phys 2013; 137:214502. [PMID: 23231246 DOI: 10.1063/1.4768955] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We report a detailed analysis of the dynamic structure factor of glassy sorbitol by using inelastic X-ray scattering and previously measured light scattering data [B. Ruta, G. Monaco, F. Scarponi, and D. Fioretto, Philos. Mag. 88, 3939 (2008)]. The thus obtained knowledge on the density-density fluctuations at both the mesoscopic and macroscopic length scale has been used to address two debated topics concerning the vibrational properties of glasses. The relation between the acoustic modes and the universal boson peak (BP) appearing in the vibrational density of states of glasses has been investigated, also in relation with some recent theoretical models. Moreover, the connection between the elastic properties of glasses and the slowing down of the structural relaxation process in supercooled liquids has been scrutinized. For what concerns the first issue, it is here shown that the wave vector dependence of the acoustic excitations can be used, in sorbitol, to quantitatively reproduce the shape of the boson peak, supporting the relation between BP and acoustic modes. For what concerns the second issue, a proper study of elasticity over a wide spatial range is shown to be fundamental in order to investigate the relation between elastic properties and the slowing down of the dynamics in the corresponding supercooled liquid phase.
Collapse
Affiliation(s)
- B Ruta
- European Synchrotron Radiation Facility, BP220, F-38043 Grenoble, France.
| | | | | | | | | | | |
Collapse
|
10
|
Zanatta M, Fontana A, Orecchini A, Petrillo C, Sacchetti F. Inelastic Neutron Scattering Investigation in Glassy SiSe2: Complex Dynamics at the Atomic Scale. J Phys Chem Lett 2013; 4:1143-1147. [PMID: 26282034 DOI: 10.1021/jz400232c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A detailed investigation of the THz dynamics in glassy SiSe2 by means of neutron inelastic scattering is presented. To carefully map the translational dynamics and the region of the boson peak, we carried out two different experiments with sharp and broad resolutions coupled with a narrow and a wide kinematic range, respectively. Data show a complex pattern of excitations made up of three components. The most intense one is the prolongation of the longitudinal acoustic mode while two other modes appear in the boson peak region below 3 meV. We propose an interaction model that allows for a consistent identification of the nature of these modes.
Collapse
Affiliation(s)
| | - A Fontana
- ‡Dipartimento di Fisica, Università di Trento, I-38050 Povo, Trento, Italy
- ¶IPCF CNR, UOS di Roma, c/o Università di Roma ″La Sapienza″, I-00185 Roma, Italy
| | - A Orecchini
- ∥Institut Laue Langevin, F-38042 Grenoble, France
| | | | | |
Collapse
|
11
|
Affiliation(s)
- M. D. Ediger
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Peter Harrowell
- School of Chemistry, University of Sydney, Sydney, NSW 2006, Australia
| |
Collapse
|