Published November 2006
| public
Journal Article
Recovery of stishovite-structure at ambient conditions out of shock-generated amorphous silica
Abstract
We show that bulk amorphous silica recovered from shock-wave experiments on quartz to 57 GPa is not a true glass but rather keeps a large degree of long-range structural information that can be recovered by static cold recompression to 13 GPa. At this pressure, shock-retrieved silica assumes the structure of crystalline stishovite. A minor amount of material recovers the structure of a recently discovered new silica polymorph.
Additional Information
© 2006 Mineralogical Society of America. Manuscript Received June 20, 2005; manuscript Accepted May 30, 2006. This work was supported under the NNSA Cooperative Agreement DEFC88-01NV14049 and under NASA PGG Grant NNG04G107G and Contribution no. 9144, Division of Geological and Planetary Sciences, California Institute of Technology. We thank V. Prakapenka, T. Sharp, and R. Jones for their very helpful comments. We thank M. Long and P. Gelle for support in performing the shock experiment and M. Somayazulu for assistance in the synchrotron diffraction experiment. Use of the HPCAT facility was supported by DOE-BES, DOE-NNSA, NSF, DOD-TACOM, and the W.M. Keck Foundation. APS is supported by DOE-BES under contract no. W-31-109-Eng-38.Additional details
- Eprint ID
- 33736
- Resolver ID
- CaltechAUTHORS:20120830-160334838
- DEFC88- 01NV14049
- NASA
- NNG04G107G
- NASA PGG Grant
- DOE-NNSA
- NSF
- DOD-TACOM
- W. M. Keck Foundation
- W-31-109-Eng-38
- DOE-BES
- Created
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2012-08-30Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Division of Geological and Planetary Sciences
- Other Numbering System Name
- Caltech Division of Geological and Planetary Sciences
- Other Numbering System Identifier
- 9144