Progressive transformations of silica glass upon densification
C Sonneville, A Mermet, B Champagnon… - The Journal of …, 2012 - pubs.aip.org
The elastic and plastic behaviors of silica glasses densified at various maximum pressure
reached (12 GPa, 15 GPa, 19 GPa, and 22 GPa), were analyzed using in situ Raman and
Brillouin spectroscopies. The elastic anomaly was observed to progressively vanish up to a
maximum pressure reached of 12 GPa, beyond which it is completely suppressed. Above
the elastic anomaly the mechanical behavior of silica glass, as derived from Brillouin
measurements, is interpreted in terms of pressure induced transformation of low density …
reached (12 GPa, 15 GPa, 19 GPa, and 22 GPa), were analyzed using in situ Raman and
Brillouin spectroscopies. The elastic anomaly was observed to progressively vanish up to a
maximum pressure reached of 12 GPa, beyond which it is completely suppressed. Above
the elastic anomaly the mechanical behavior of silica glass, as derived from Brillouin
measurements, is interpreted in terms of pressure induced transformation of low density …
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