Singh, AK and Mao, HK and Shu, J and Hemley, RJ (1998) Estimation of single-crystal elastic moduli from polycrystalline x-ray diffraction at high pressure: application to FeO and Iron. Physical Review Letters, 80 (10). pp. 2157-2160.
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Abstract
X-ray diffraction data obtained under nonhydrostatic compression of a polycrystalline sample yield13; an estimate of the single-crystal elasticity tensor of the material when analyzed using appropriate13; equations. The analysis requires as input the aggregate shear modulus from independent measurements.13; The high-pressure elastic moduli of face-centered-cubic FeO, body-centered-cubic iron (a-Fe), and the13; pressure-induced hexagonal close-packed iron (e-Fe) are obtained. This analysis currently provides13; the only method of determining single-crystal elasticity tensors in the megabar pressure range and of13; studying elasticity of very high-pressure phases.
| Item Type: | Journal Article |
|---|---|
| Additional Information: | Copyright for this article belongs to American Physical Society |
| Uncontrolled Keywords: | Polycrystalline x-Ray diffraction;Seismic anisotropy; Synchrotron x-ray |
| Subjects: | PHYSICS > Physics(General) |
| Division/Department: | Materials Science Division, Other, Other, Other |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 12 Sep 2008 |
| Last Modified: | 17 Jun 2010 13:33 |
| URI: | http://nal-ir.nal.res.in/id/eprint/4813 |
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