In situ X-ray observation of iron using Kawai-type apparatus equipped with sintered diamond: Absence of β phase up to 44 GPa and 2100 K

Geophysical Research Letters

Volumn 30, Issue 3, 2003, Pages

  Kubo, Atsushi ^a   Ito, Eiji ^a   Katsura, Tomoo ^a   Shinmei, Toru ^a   Yamada, Hitoshi ^a   Nishikawa, Osamu ^a   Song, Maoshuang ^a   Funakoshi, Kenichi ^b  

^a OKAYAMA UNIVERSITY   (Japan)

^b JAPAN SYNCHROTRON RADIATION RESEARCH INSTITUTE   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

DIAMONDS; IRON; SINTERING; X RAY ANALYSIS;

PHASE BOUNDARIES;

GEOPHYSICS;

EXPERIMENTAL MINERALOGY; HIGH PRESSURE; IRON; POLYMORPHISM;

EID: 0037660716     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2002GL016394     Document Type: Article

References (27)

1. Anderson, O. L., D. G. Isaak, and S. Yamamoto, Anharmonicity and the equation of state for gold, J. Appl. Phys., 65, 1534 1543, 1989.
2. Andrault, D., G. Fiquet, M. Kunz, F. Visocekas, and D. Häusermann, The orthorhombic structure of iron: An in situ study at high-temperature and high-pressure, Science, 278, 831 834, 1997.
3. Andrault, D., G. Fiquet, T. Charpin, and T. Ie Bihan, Structure analysis and stability field of 3-iron at high P and T. Am. Mineral, 85, 364 371, 2000.
4. Boehler, R., The phase diagram of iron to 430 kbar, Geophys. Res. Lett., 13, 1153 1156, 1986.
5. Boehler, R., Temperatures in the Earth's core from melting-point measurements of iron at high static pressures. Nature, 363, 534 536, 1993.
6. Boehler, R., High-pressure experiments and the phase diagram of lower mantle and core materials, Rev. Geophys., 38, 221 245, 2000.
7. Dubrovinsky, L. S., S. K. Saxena, and P. Lazor, High-pressure and high-temperature in situ X-ray diffraction study of iron and corundum to 68 GPa using an internally heated diamond anvil cell, Phys. Chem. Miner., 25, 434 441, 1998.
8. Dubrovinsky, L. S., S. K. Saxena, F. Tutti, S. Rekhi, and T. LeBehan, In Situ X-ray study of thermal expansion and phase transition of iron at multimegabar pressure, Phys. Rev. Lett., 84, 1720 1723, 2000.
9. Fei, Y., and H.-K. Mao. In situ determination of the NiAs phase of FeO at high pressure and temperature, Science, 266, 1678 1680, 1994.
10. Funamori, N., T. Yagi, and T. Uchida, High-pressure and high-temperature in situ x-ray diffraction study of iron to above 30 GPa using MA8-type apparatus, Geophys. Res. Lett., 23, 953 956, 1996.
11. Hemley, R. J., and H. K. Mao. In situ studies of iron under pressure: new windows on the Earth's core, Int. Geol. Rev., 43, 1 30, 2001.
12. 12) in a sintered diamond cubic anvil assembly, Geophys. Res. Lett., 25, 821 824, 1998.
13. Jamieson, J. C., J. N. Fritz, and M. H. Manghnani, Pressure measurement at high temperature in X-ray diffraction studies: Gold as a primary standard, in High Pressure Research in Geophysics, AEPS, 12, edited by S. Akimoto and M. H. Manghnani, pp. 27 48, CAPJ, Tokyo, 1982.
14. Jephcoat, A. P., H. K. Mao, and P. M. Bell, Static compression of iron to 78 GPa with rare gas solids as pressure-transmitting media, J. Geophys. Res., 91, 4677 4684, 1986.
15. Kondo, T., In situ X-ray diffraction experiments using laser-heated DAC, in Photon Factory Activity Rep. 2000, pp. 33 34, High Energy Accelerator Res. Org., Tsukuba, 2000.
16. Mao, H. K., P. M. Bell, and C. Hadidiacos, 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, Geophys. Monogr. Res., vol. 39, edited by M. H. Manghnani and Y. Syono, pp. 135 138, AGU, Washington, D. C., 1987.
17. 02 alloy to 260 GPa: Implications for composition of the core, J. Geophys. Res., 95, 21,737 21,742, 1990.
18. Saxena, S. K., and L. S. Dubrovinsky, Iron phases at high pressures and temperatures: phase transition and melting, Am. Mineral., 85, 372 375, 2000.
19. Saxena, S. K., G. Shen, and P. Lazor, Experimental evidence for a new iron phase and implications for Earth's core, Science, 260, 1312 1314, 1993.
20. Saxena, S. K., L. S. Dubrovinsky, P. Häggkvist, Y. Cerenius, G. Shen, and H. K. Mao, Synchrotron X-ray study of iron at high pressure and temperature, Science, 269, 1703 1704, 1995.
21. 1C to 73 GPa: Implications for carbon in the Earth's core, Geophys. Res. Lett., 28, 1875 1878, 2001.
22. Shen, G., and D. L. Heinz, High-pressure melting of deep mantle and core materials, in Ultrahigh-pressure mineralogy, edited by R. J. Hemley and H.-K. Mao, pp. 369 396, Mineral. Soc. of Am., Washington, D. C., 1998.
23. Shen, G., H.-K. Mao, R. J. Hemley, T. S. Duffy, and M. L. Rivers, Melting and crystal structure of iron at high pressures and temperatures. Geophys. Res. Lett., 25, 373 376, 1998.
24. Uchida, T., Y. Wang, M. L. Rivers, and S. R. Sutton, Stability field and thermal equation of state of -iron determined by synchrotron X-ray diffraction in a multianvil apparatus, J. Geophys. Res., 106, 21,799 21,810, 2001.
25. Utsumi, W., K. Funakoshi, S. Urakawa, M. Yamakata, K. Tsuji, H. Konishi, and O. Shimomura, SPring-8 beamlines for high pressure science with multi-anvil apparatus, Rev. High Pressure Sci. Tech., 7, 1484 1486, 1998.
26. Vocadlo, L., J. Brodholt, D. Alfe, M. J. Gillan, and G. D. Price, Ab initio free energy calculations on the polymorphs of iron at core conditions, Phys. Earth Planet. Inter., 117, 123 137, 2000.
27. Yoo, C. S., J. Akella, A. J. Campbell, H. K. Mao, and R. J. Hemley, Phase diagram of iron by in Situ X-ray diffraction: Implications for Earth's core, Science, 270, 1473 1475, 1995.