Normal to abnormal behavior of PbSiO3 glass: a vibrational spectroscopy investigation under high-pressure - Archive ouverte HAL Access content directly
Journal Articles Journal of Non-Crystalline Solids Year : 2022

Normal to abnormal behavior of PbSiO3 glass: a vibrational spectroscopy investigation under high-pressure

Abstract

High pressure may pave the way towards atypical phenomena and properties in glass science. Through compression, vitreous silica presents a well-established elastic anomaly (EA) and the scarcely investigated elastic modulus anomaly (EMA). In this paper, we present a study of the EMA for the densified lead metasilicate (PbSiO3) glass, despite its low silica content and lack of the classical EA. PbSiO3 glass was densified in diamond anvil cell and Belt press apparatus and analyzed by Brillouin spectroscopy and, when applicable, spectroscopic ellipsometry. The elastic modulus anomaly is characterized by a decrease in the longitudinal sound velocity of the densified glass compared to the uncompressed glass and attributed to the low glass ability to undergo significant densification. Densification pathways in PbSiO3 glass are discussed in light of in-situ Brillouin and Raman probes.
Fichier principal
Vignette du fichier
Pena 2022.pdf (1.21 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03877431 , version 1 (29-11-2022)

Identifiers

Cite

R.B. Pena, Thierry Deschamps, Alex Amato, Sylvie Le Floch, Paolo Pizani, et al.. Normal to abnormal behavior of PbSiO3 glass: a vibrational spectroscopy investigation under high-pressure. Journal of Non-Crystalline Solids, 2022, 589, pp.121614. ⟨10.1016/j.jnoncrysol.2022.121614⟩. ⟨hal-03877431⟩
35 View
67 Download

Altmetric

Share

Gmail Facebook X LinkedIn More