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Ouldhnini Y, Atila A, Ouaskit S, Hasnaoui A. Atomistic insights into the structure and elasticity of densified 45S5 bioactive glasses. Phys Chem Chem Phys 2021; 23:15292-15301. [PMID: 34251004 DOI: 10.1039/d1cp02192c] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Glasses have applications in regenerative medicine due to their bioactivity, enabling interactions with hard and soft tissues. Soda-lime phosphosilicate glasses, such as 45S5, represent a model system of bioactive glasses. Regardless of their importance as bioactive materials, the relationship between the structure, density, and cooling process has not been studied in detail. This hinders further development of glasses as biomaterials. We used molecular dynamics simulations to study the elastic and structural properties of densified 45S5 bioactive glass and liquids over a wide range of densities. We performed a systematic analysis of the glass structure to density relationship to correlate the change in the properties with the structural change to enhance the mechanical properties of bioactive glasses while preserving their bioactive nature. The results show that the glass structure tends to be repolymerized, as indicated by increased network connectivity and a tetrahedral to octahedral polyhedral transition. We were able to tailor the elastic properties while keeping the bioactivity of the glass. The results presented here will provide some guidance to develop bioactive glasses with enhanced mechanical properties.
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Affiliation(s)
- Youssef Ouldhnini
- LS3M, Faculté Polydisciplinaire Khouribga, Sultan Moulay Slimane University of Beni Mellal, B.P 145, 25000 Khouribga, Morocco
| | - Achraf Atila
- Department of Materials Science Engineering, Institute I: General Materials Properties, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.
| | - Said Ouaskit
- Laboratoire de Physique de la Matière Condensée, Faculté des Sciences Ben M'sik, University Hassan II of Casablanca, B.P 7955, Av Driss El Harti, Sidi Othmane, Casablanca, Morocco
| | - Abdellatif Hasnaoui
- LS3M, Faculté Polydisciplinaire Khouribga, Sultan Moulay Slimane University of Beni Mellal, B.P 145, 25000 Khouribga, Morocco
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Elastic Anomaly and Polyamorphic Transition in (La, Ce)-based Bulk Metallic Glass under Pressure. Sci Rep 2017; 7:724. [PMID: 28389659 PMCID: PMC5429654 DOI: 10.1038/s41598-017-00737-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Accepted: 03/09/2017] [Indexed: 11/09/2022] Open
Abstract
Pressure-induced polyamorphism in Ce-based metallic glass has attracted significant interest in condensed matter physics. In this paper, we discover that in association with the polyamorphism of La32Ce32Al16Ni5Cu15 bulk metallic glass, the acoustic velocities, measured up to 12.3 GPa using ultrasonic interferometry, exhibit velocity minima at 1.8 GPa for P wave and 3.2 GPa for S wave. The low and high density amorphous states are distinguished by their distinct pressure derivatives of the bulk and shear moduli. The elasticity, permanent densification, and polyamorphic transition are interpreted by the topological rearrangement of solute-centered clusters in medium-range order (MRO) mediated by the 4f electron delocalization of Ce under pressure. The precisely measured acoustic wave travel times which were used to derive the velocities and densities provided unprecedented data to document the evolution of the bulk and shear elastic moduli associated with a polyamorphic transition in La32Ce32Al16Ni5Cu15 bulk metallic glass and can shed new light on the mechanisms of polyamorphism and structural evolution in metallic glasses under pressure.
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Fuhrmann S, Deschamps T, Champagnon B, Wondraczek L. A reconstructive polyamorphous transition in borosilicate glass induced by irreversible compaction. J Chem Phys 2014; 140:054501. [DOI: 10.1063/1.4863348] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sonneville C, De Ligny D, Mermet A, Champagnon B, Martinet C, Henderson GH, Deschamps T, Margueritat J, Barthel E. In situ Brillouin study of sodium alumino silicate glasses under pressure. J Chem Phys 2013; 139:074501. [DOI: 10.1063/1.4818335] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Izvekov S, Rice BM. Mechanism of densification in silica glass under pressure as revealed by a bottom-up pairwise effective interaction model. J Chem Phys 2012; 136:134508. [DOI: 10.1063/1.3696865] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Tkachev SN, Pravica M, Kim E, Romano E, Weck PF. High-Pressure Studies of 1,3,5,7-Cyclooctatetraene: Experiment and Theory. J Phys Chem A 2008; 112:11501-7. [DOI: 10.1021/jp806968c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sergey N. Tkachev
- Department of Physics and Astronomy, and High Pressure Science and Engineering Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4002, and Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003
| | - Michael Pravica
- Department of Physics and Astronomy, and High Pressure Science and Engineering Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4002, and Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003
| | - Eunja Kim
- Department of Physics and Astronomy, and High Pressure Science and Engineering Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4002, and Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003
| | - Edward Romano
- Department of Physics and Astronomy, and High Pressure Science and Engineering Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4002, and Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003
| | - Philippe F. Weck
- Department of Physics and Astronomy, and High Pressure Science and Engineering Center, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4002, and Department of Chemistry, University of Nevada Las Vegas, 4505 Maryland Parkway, Las Vegas, Nevada 89154-4003
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Antao SM, Benmore CJ, Li B, Wang L, Bychkov E, Parise JB. Network rigidity in GeSe2 glass at high pressure. PHYSICAL REVIEW LETTERS 2008; 100:115501. [PMID: 18517792 DOI: 10.1103/physrevlett.100.115501] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2007] [Indexed: 05/26/2023]
Abstract
Acoustic measurements using synchrotron radiation have been performed on glassy GeSe2 up to pressures of 9.6 GPa. A minimum observed in the shear-wave velocity, associated anomalous behavior in Poisson's ratio, and discontinuities in elastic moduli at 4 GPa are indicative of a gradual structural transition in the glass. This is attributed to a network rigidity minimum originating from a competition between two densification mechanisms. At pressures up to 3 GPa, a conversion from edge- to corner-sharing tetrahedra results in a more flexible network. This is contrasted by a gradual increase in coordination number with pressure, which leads to an overall stiffening of the glass.
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Affiliation(s)
- Sytle M Antao
- Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.
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