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Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars
Abstract
Crystal structures of several of the corundum-type oxides have been determined at pressures to 50 kbars. All materials have linear compression within the pressure range and precision of the techniques used. Compression of Cr2O3 and Al2O3 is essentially isotropic (c/a remains constant), Fe2O3 has a slightly anisotropic compression, with c/a decreasing slightly with pressure, and V2O3 is very anisotropic, with the a axis nearly three times more compressible than c. Similar differences are observed in the structural parameters. Aluminum, iron, and chromium sesquioxides simply scale, whereas atomic positions in V2O3 approach an ideal HCP arrangement with increasing pressure. The differences in structural variation with pressure for these ’’isostructural’’ compounds emphasize the difficulty in using simple bonding parameters to predict details of crystal structures under nonambient conditions.
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Cites
Miniature diamond anvil pressure cell for single crystal x-ray diffraction studies
Merrill, L., & Bassett, W. A. (1974) · Review of Scientific Instruments · doi:10.1063/1.1686607 · Cited by 919
Cited by
An internally consistent thermodynamic data set for phases of petrological interest
HOLLAND, T. J. B., & POWELL, R. (1998) · Journal of Metamorphic Geology · doi:10.1111/j.1525-1314.1998.00140.x · Cited by 4,881
HOLLAND, T. J. B., & POWELL, R. (1990) · Journal of Metamorphic Geology · doi:10.1111/j.1525-1314.1990.tb00458.x · Cited by 1,154
Groppo, E., Lamberti, C., Bordiga, S., Spoto, G., & Zecchina, A. (2005) · Chemical Reviews · doi:10.1021/cr040083s · Cited by 419
Mosey, N. J., Liao, P., & Carter, E. A. (2008) · The Journal of Chemical Physics · doi:10.1063/1.2943142 · Cited by 353
Lutfalla, S., Shapovalov, V., & Bell, A. T. (2011) · Journal of Chemical Theory and Computation · doi:10.1021/ct200202g · Cited by 284
Metadata
- Authors
- Finger, L. W., & Hazen, R. M.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1980-10-01
- Volume
- 51
- Issue
- 10
- Pages
- 5362-5367
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2010011374
- Cited by
- 625
- References
- 1
- FWCI
- 2.76
- Type
- journal article
- Language
- en
- Open access
- closed
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- Finger, L. W., & Hazen, R. M. (1980). Crystal structure and isothermal compression of Fe2O3, Cr2O3, and V2O3 to 50 kbars. Journal of Applied Physics. https://doi.org/10.1063/1.327451
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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