Oxide glasses under pressure: Recent insights from experiments and simulations - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue (Article De Synthèse) Journal of Applied Physics Année : 2022

Oxide glasses under pressure: Recent insights from experiments and simulations

Tao Du
Søren Sørensen
Theany To
Morten Smedskjaer

Résumé

Deciphering the structure–property relations of densified oxide glasses is a problem of longstanding interest. For example, it is important for understanding the fracture mechanism under sharp contact loading as well as fabricating glasses with tunable physical characteristics. Recent advances in both experimental and simulation techniques have prompted research breakthroughs in understanding the response of glasses to high pressure. In this Perspective, we first briefly discuss the facilities for the high-pressure treatment of glasses, including in situ and ex situ investigations. The recent work on pressure-induced structural changes of archetypical oxide glass families (silicates, germanates, borates, aluminates, phosphates) is discussed and compared to the changes in macroscopic properties induced by densification, as densification treatment can be used to produce oxide glasses with improved hardness, stiffness, and toughness. We also discuss the new insights from atomistic simulations combined with topological analysis tools to unravel the densification mechanism of oxide glasses on the medium-range order length scale. Drawing on these recent studies, we clarify how densification treatment has proved to be an important tool to both understand the disordered nature of glasses and tune their physical properties, although many open questions and challenges remain that require further investigations.

Dates et versions

hal-04270062 , version 1 (03-11-2023)

Identifiants

Citer

Tao Du, Søren Sørensen, Theany To, Morten Smedskjaer. Oxide glasses under pressure: Recent insights from experiments and simulations. Journal of Applied Physics, 2022, 131 (17), ⟨10.1063/5.0088606⟩. ⟨hal-04270062⟩
11 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More