TY - JOUR
T1 - Over 1Mbar generation in the Kawai-type multianvil apparatus and its application to compression of (Mg0.92Fe0.08)SiO3 perovskite and stishovite
AU - Yamazaki, D.
AU - Ito, E.
AU - Yoshino, T.
AU - Tsujino, N.
AU - Yoneda, Akira
AU - Guo, X.
AU - Xu, F.
AU - Higo, Y.
AU - Funakoshi, K.
N1 - Funding Information:
We thank S. Shan and C. Oka for experimental support and Y. Wang and an anonymous reviewer for comments that improved the manuscript. Special thanks to K. Hirose, M. Jellinek and Y. Wang for editorial work. X-ray diffraction measurements were conducted at BL04B1, SPring-8, Japan (Proposal Nos., 2013A1709, 2012B1081, 2012A1702, 2011B1452, 2011A1781, 2010B1213). This work is partially supported by a Grant-in-Aid for Scientific Research from the Japanese Government (No. 22224008 ).
PY - 2014/3
Y1 - 2014/3
N2 - We generated pressures up to 109.3GPa in a Kawai-type multianvil apparatus (KMA) equipped with sintered diamond anvils by means of in situ X-ray observation with synchrotron radiation. The unit cell parameters of (Mg0.92Fe0.08)SiO3 perovskite, SiO2 stishovite, and the CaCl2-type polymorph of SiO2 were measured as functions of pressure. We determined the isothermal bulk modulus, KT0, and its pressure derivative, K0', at zero pressure, to be 268 (3)GPa and 3.8 (0.1), respectively, for (Mg0.92Fe0.08)SiO3 perovskite. Stishovite transforms to the CaCl2-type phase at approximately 54GPa at 300K. Compression through stishovite and the CaCl2-type phase can be represented by a single compression curve with KT0=299 (4)GPa and K0'=4.6(0.2).
AB - We generated pressures up to 109.3GPa in a Kawai-type multianvil apparatus (KMA) equipped with sintered diamond anvils by means of in situ X-ray observation with synchrotron radiation. The unit cell parameters of (Mg0.92Fe0.08)SiO3 perovskite, SiO2 stishovite, and the CaCl2-type polymorph of SiO2 were measured as functions of pressure. We determined the isothermal bulk modulus, KT0, and its pressure derivative, K0', at zero pressure, to be 268 (3)GPa and 3.8 (0.1), respectively, for (Mg0.92Fe0.08)SiO3 perovskite. Stishovite transforms to the CaCl2-type phase at approximately 54GPa at 300K. Compression through stishovite and the CaCl2-type phase can be represented by a single compression curve with KT0=299 (4)GPa and K0'=4.6(0.2).
KW - Kawai-type apparatus
KW - Pressure generation
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U2 - 10.1016/j.pepi.2014.01.013
DO - 10.1016/j.pepi.2014.01.013
M3 - Article
AN - SCOPUS:84897058559
SN - 0031-9201
VL - 228
SP - 262
EP - 267
JO - Physics of the Earth and Planetary Interiors
JF - Physics of the Earth and Planetary Interiors
ER -