Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9781719 | Journal of Physics and Chemistry of Solids | 2005 | 5 Pages |
Abstract
The pressure-volume-temperature behavior of osmium was studied at pressures and temperatures up to 15 GPa and 1273 K. In situ measurements were conducted using energy-dispersive synchrotron X-ray diffraction in a T-cup 6-8 high pressure apparatus. A fit of room-temperature data by the third-order Birch-Murnaghan equation-of-state yielded isothermal bulk modulus K0=435(19) GPa and its pressure derivative Kâ²0=3.5(0.8) GPa. High-temperature data were analyzed using Birch-Murnaghan equation of state and thermal pressure approach. The temperature derivative of bulk modulus was found to be â0.061(9) GPa Kâ1. Significant anisotropy of osmium compressibility was observed.
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Authors
G.A. Voronin, C. Pantea, T.W. Zerda, L. Wang, Y. Zhao,