Published April 18, 2000 | Version Published
Book Section - Chapter Open

Vitreous GeO2 response to shock loading

Abstract

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.

Additional Information

© 2000 American Institute of Physics. This work was supported by Army Research Office and NASA. Contribution number 8663, Division of Geological and Planetary Sciences, California Institute of Technology, Pasadena, CA 91125.

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Identifiers

Eprint ID
5914
Resolver ID
CaltechAUTHORS:LIUaipcp00b

Funding

Army Research Office (ARO)
NASA

Dates

Created
2006-11-08
Created from EPrint's datestamp field
Updated
2021-11-08
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Caltech Custom Metadata

Series Name
American Institute of Physics Conference Proceedings
Series Volume or Issue Number
505
Other Numbering System Name
Caltech Division of Geological and Planetary Sciences
Other Numbering System Identifier
8663