SYNCHROTRON X-RAY POWDER DIFFRACTION STUDY OF NATURAL P2 /N-OMPHACITES AT HIGH-PRESSURE CONDITIONS
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dc.contributor.author | Pavese A. | |
dc.contributor.author | Diella V. | |
dc.contributor.author | Levy D. | |
dc.contributor.author | Hanfland M. | |
dc.date.accessioned | 2021-03-17T05:23:33Z | |
dc.date.available | 2021-03-17T05:23:33Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=872419 | |
dc.identifier.citation | Physics and Chemistry of Minerals, 2001, 28, 1, 9-16 | |
dc.identifier.issn | 0342-1791 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/26845 | |
dc.description.abstract | Synchrotron X-ray powder diffraction experiments at high pressure conditions (0.0001-13 GPa) were performed at ESRF (Grenoble-F), on the beamline ID9, to investigate the bulk elastic properties of natural P2/n-omphacites, with quasi-ideal composition. The monoclinic cell parameters a, b, c and β were determined as a function of pressure, and their compressibility coefficients are 0.00277(7), 0.00313(8), 0.00292(5) and 0.00116(4) GPa-1espectively. The third-order Birch-Murnaghan equation of state was used to interpolate the experimental P-V data, obtaining K06.6(±2.5) GPa and K'003(±0.60). K0s also determined by means of the axial and angular compressibilities [122.5(±1.7) GPa], and of the finite Lagrangian strain theory [121.5(±1.0) GPa]. The discrepancies on K0e discussed in the light of a comparison between techniques to determine the bulk modulus of crystalline materials from static compression diffraction data. | |
dc.subject | OMPHACITES | |
dc.subject | BULK ELASTIC PROPERTIES | |
dc.subject | LAGRANGIAN STRAIN THEORY | |
dc.title | SYNCHROTRON X-RAY POWDER DIFFRACTION STUDY OF NATURAL P2 /N-OMPHACITES AT HIGH-PRESSURE CONDITIONS | |
dc.type | Статья |
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