Determination of αε Transition Pressure in Fe-V Alloy
- Murli H. Manghnani and
- Yasuhiko Syono
Published Online: 21 MAR 2013
Copyright © 1987 by Terra Scientific Publishing Company (TERRAPUB), Tokyo.
High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto
How to Cite
Endo, S., Toyama, N., Ishibashi, A., Chino, T., Fujita, F. E., Shimomura, O., Sumiyama, K. and Tomii, Y. (1987) Determination of αε Transition Pressure in Fe-V Alloy, in High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto (eds M. H. Manghnani and Y. Syono), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM039p0029
- Published Online: 21 MAR 2013
- Published Print: 1 JAN 1987
Print ISBN: 9780875900667
Online ISBN: 9781118664124
- Mineralogy and Crystal Chemistry;
- Phase transformations;
- High Pressure-High Temperature Research
Using a high-pressure X-ray diffraction method developed by combining sintered diamond (SD) anvils and synchrotron radiation, we studied the pressures of the α-ε phase transition in Fe-V alloys in order to confirm pressure-fixed points above 22 GPa. The pressures obtained by simultaneous measurements of the lattice parameters of NaCl and Au and the electric resistance of Fe-V with SD were in agreement with the pressures determined by the ruby fluorescence method and X-ray observation with a diamond-anvil cell. Taking into consideration the pressure distribution within the sample, we determined the pressures at the initiation of the transitions to be 35, 43, and 51 GPa, for Fe-18.8, 22.1, and 25.0 wt%V, respectively. These values are significantly lower than previous values reported for shock-wave and static experiments.