Vitreous GeO2 response to shock loading

被引：0

作者：

Liu, C ^{[1
]}

Ahrens, TJ ^{[1
]}

Brar, NS ^{[1
]}

机构：

[1] CALTECH, Seismol Lab, Pasadena, CA 91125 USA

来源：

SHOCK COMPRESSION OF CONDENSED MATTER-1999, PTS 1 AND 2 | 2000年 / 505卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Shock wave profiles in vitreous GeO2 (6.56 Mg/m(3)) under planar loading were measured using stress gauges to 14 GPa. New and previous data yield Hugoniot: D = 0.974 (km/s) + 1.711 u for shocks of 6 to 40 GPa. We show that the phase change from 4- to 6-fold coordination of Ge+4 with O-2 in vitreous GeO2 occurs from 4 to 15 GPa. Hugoniots of vitreous GeO2 and SiO2 are found to approximately coincide if the pressure in SiO2 is scaled by the ratio of SiO2 to GeO2 initial density.

引用

页码：275 / 278

页数：4

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