Determination of α[RIGHTWARDS ARROW]ε Transition Pressure in Fe-V Alloy

  1. Murli H. Manghnani and
  2. Yasuhiko Syono
  1. S. Endo1,
  2. N. Toyama1,
  3. A. Ishibashi1,
  4. T. Chino1,
  5. F. E. Fujita1,
  6. O. Shimomura2,
  7. K. Sumiyama3 and
  8. Y. Tomii3

Published Online: 21 MAR 2013

DOI: 10.1029/GM039p0029

High-Pressure Research in Mineral Physics: A Volume in Honor of Syun-iti Akimoto

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 α[RIGHTWARDS ARROW]ε 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

Author Information

  1. 1

    Research Center for Extreme Materials, Osaka University, Toyonaka, Osaka 560, Japan

  2. 2

    National Institute for Research in Inorganic Materials, Sakura-Mura, Niihari-Gun, Ibaraki 305, Japan

  3. 3

    Department of Metal Science and Technology, Faculty of Engineering, Kyoto University, Kyoto 606, Japan

Publication History

  1. Published Online: 21 MAR 2013
  2. Published Print: 1 JAN 1987

ISBN Information

Print ISBN: 9780875900667

Online ISBN: 9781118664124

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Keywords:

  • Mineralogy and Crystal Chemistry;
  • Phase transformations;
  • High Pressure-High Temperature Research

Summary

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.