X-ray study of iron with in-situ heating at ultra high pressures

Geophysical Research Letters

Volumn 24, Issue 14, 1997, Pages 1835-1838

  Dubrovinsky, L S ^a   Saxena, S K ^a   Lazor, P ^a  

^a UPPSALA UNIVERSITY   (Sweden)

Author keywords

[No Author keywords available]

Indexed keywords

EARTH SCIENCES; GEOPHYSICS; ARGON; CRYSTAL STRUCTURE; DIAMONDS; ELECTRIC HEATING; HIGH PRESSURE EFFECTS; IRON; THERMODYNAMIC STABILITY; X RAY ANALYSIS;

EARTH'S INTERIOR; ELECTRICAL HEATING; EXPERIMENTAL EVIDENCE; HEXAGONAL CLOSE PACKED; HIGH-PRESSURE AND TEMPERATURES; IN-SITU HEATING; PRESSURE-TEMPERATURE STABILITY; ULTRAHIGH PRESSURE;

IRON; GEOPHYSICS;

DOUBLE HEXAGONAL CLOSE PACKED STRUCTURE; EARTH INTERIOR; HEXAGONAL CLOSE PACKED STRUCTURE; POLYMORPH;

HIGH PRESSURE; IRON; PHASE TRANSFORMATION;

EID: 0031180228     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/97GL01746     Document Type: Article

References (13)

1. Boehler, R., M. Nicol, and M. L. Johanson, Internally heated diamond-anvil cell: phase diagramm and P-V-T of iron, in High-pressure Research in Mineral Physics, edited by M. H. Manghnani & Y. Syono, pp. 173-176, TERRAPUB/AGU, 1987.
2. Boehler, R., Temperatures in the Earth's core from melting-point measurements of iron at high static pressures, Nature, 363, 534-536, 1993.
3. Fiquet, G., D. Andrault, J.P. Itie, P. Gillet, and P. Richet, X-ray diffraction in a laser-heated diamond-anvil cell. Proceedings of the 3rd NIRIM International symposium on advanced materials, Tsukuba, Japan, March 4-8, 1996.
4. Funamori, N., T. Yagi, and T. Uchida, High-pressure and high-temperature in-situ x-ray diffraction study of iron above 30 GPa using MA8-type apparatus, Geophys. Res. Leiters, 23, 953-956, 1996.
5. Mao, H. K., P. Bell, M., 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, edited by M. H. Manghnani & Y. Syono, pp. 135-138, TERRAPUB/AGU, 1987.
6. 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.
7. Saxena, S. K., G. Shen, and P. Lazor, Temperatures in Earth's core based on melting and phase transformation experiments on iron, Science, 264, 405-407, 1994.
8. Saxena, S.K., L.S. Dubrovinsky, and 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.
9. Saxena, S.K., L. S. Dubrovinsky, and P. Häggkvist, X-ray evidence for new phase β-iron at high temperature and high pressure. Geophys. Res. Letters. 23, 2441-2444, 1996.
10. Shen, G., H. K. Mao, and R. J. Hemley, In Proceedings of The 3rd NIRIM International Symposium on Advanced Materials (ISAM'96), Tsukuba, Japan, pp. 149-152, National Inst. Research in Inorganic Materials, Tsukuba, Japan.
11. 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.
12. Yoo, C. S., P. Söderlind, A. J. Campbell, DHCP as possible new ε' phase of iron at high pressure and temperature. Phys Lett A, 214, 65-68, 1996.
13. Zachariasen, W. H. Theory of x-ray difraction in crystals, John Wiley&Sons, N.-Y., 1944.