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High pressure X-ray diffraction study of Fe2B |
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| Authors: | B Chen D Penwell MB Kruger |
| Institution: | a Department of Physics, University of Missouri, Kansas City, MO 64110, USA b School of Optics/CREOL, University of Central Florida, Orlando, FL 32816, USA c Physics and Advanced Technologies, Lawrence Livermore National Laboratory, Livermore, CA 94511, USA |
| Abstract: | We report the results of a synchrotron based X-ray diffraction study of bct-Fe2B under quasi-hydrostatic conditions from 0 to 50 GPa. Over this pressure range, no phase change or disproportionation has been observed. A weighted fit of the data to the Birch-Murnaghan equation of state yields a value of the bulk modulus, K, of 164±14 GPa and the first pressure derivative of the bulk modulus, K′, of 4.4±0.5. The compression is found to be anisotropic, with the a-axis being more incompressible than the c-axis. |
| Keywords: | 61 10 Eq 62 20 Dc 62 50 +p 64 |
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