Refractive index and elastic properties of z-cut quartz shocked to 60 kbar
Shock wave experiments were performed to characterize z-cut, {alpha}-quartz as an optical window for velocity interferometry measurements. Refractive index changes and shock velocities were determined to 60 kbar peak stress. Results indicate that the window correction to velocity measurements is a constant fraction of the actual particle velocity, {Delta}u/u=0.08107. Shock velocity measurements provide the Hugoniot curve to 60 kbar, and yield the fourth-order elastic constant, C{sub 3333}=174810kbar. By combining the velocity correction factor and the shock velocity measurements, the refractive index is determined to be a linear function of density. This finding is used to show that the velocity correction appropriate for a step jump may be applied to monotonically time-dependent wave forms with negligible error. The present work has demonstrated the use of z-cut quartz as an optical window to 60 kbar.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204957
- Journal Information:
- Journal of Applied Physics, Vol. 88, Issue 10; Other Information: DOI: 10.1063/1.1319329; Othernumber: JAPIAU000088000010005671000001; 020023JAP; PBD: 15 Nov 2000; ISSN 0021-8979
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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