Suresh, N. ; Jyoti, G. ; Gupta, Satish C. ; Sikka, S. K. ; Sangeeta, ; Sabharwal, S. C. (1994) Shock-induced amorphization of q-GeO2 Journal of Applied Physics, 76 (3). pp. 1530-1534. ISSN 0021-8979
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Official URL: http://jap.aip.org/resource/1/japiau/v76/i3/p1530_...
Related URL: http://dx.doi.org/10.1063/1.357729
Abstract
Polycrystalline samples of the a-quartz phase of GeO2 (q-GeO2), recovered from peak shock compressions of 5, 6.8, and 10 GPa, have been examined by x-ray diffraction, thermoluminescence, and Raman techniques. The measurements show that q-GeO2 irreversibly amorphizes above 6.8 GPa. The estimates of the shear band temperature suggest that the mechanism of shock-induced amorphization in q-GeO2 is a solid-solid one, in contrast to that in SiO2 quartz which has both solid-solid and fusion-quenched components.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Germanium Oxides; Amorphization; Shock Waves; Pressure Effects; Very High Pressure; XRD; Thermoluminescence; Raman Spectra; Phase Transformations |
| ID Code: | 67862 |
| Deposited On: | 31 Oct 2011 14:05 |
| Last Modified: | 31 Oct 2011 14:05 |
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