Experimental Phase Relations of Iron to 360 Kbar, 1400°C, Determined in an Internally Heated Diamond-Anvil Apparatus
- 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
Mao, H. K., Bell, P. M. and Hadidiacos, C. (2013) Experimental Phase Relations of Iron to 360 Kbar, 1400°C, Determined in an Internally Heated Diamond-Anvil Apparatus, 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/GM039p0135
- 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
Internal resistance heating experiments were conducted in a diamond-anvil apparatus to determine the γ-ε-iron transition. Accurate values of the transition temperature at high pressure were obtained with a diode-array spectrometer, which was used to measure the blackbody emission of the heated iron sample at high pressure. The transition curve was observed in the range 190–360 kbar, 800–1375°C. The slope of the transition was 3.5°C/kbar. The γ-ε transition curve, if extrapolated, would project an iron field stability under conditions of the earth's Core.