Ng, A. ; Godwal, B. K. ; Waterman, J. ; DaSilva, L. ; Ashcroft, N. W. ; Jeanloz, R. (1991) Nonequilibrium shock behavior in quartz Physical Review B, 44 (10). pp. 4872-4876. ISSN 0163-1829
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Official URL: http://prb.aps.org/abstract/PRB/v44/i10/p4872_1
Related URL: http://dx.doi.org/10.1103/PhysRevB.44.4872
Abstract
Observations of the formation and propagation of a laser-driven strong shock in fused and a-quartz reveal anomalously high, transient shock velocities. These results disagree with calculations based on equilibrium equations of state. It is conjectured that at the shock front, a transformation of quartz to stishovite is preceded by shock-induced disorder accompanied by a significant entropy increase. This state remains dominant until sufficient relaxation has occurred.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Physical Society. |
| ID Code: | 11681 |
| Deposited On: | 13 Nov 2010 14:04 |
| Last Modified: | 02 Jun 2011 09:42 |
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