Compressibility of calcium ferrite-type MgAl2O4 |
| |
Authors: | Mina Yutani Takehiko Yagi Hitoshi Yusa Tetsuo Irifune |
| |
Affiliation: | (1) Institute for Solid State Physics, University of Tokyo, 7-22-1, Roppngi, Minato-ku, Tokyo 106, Japan, JP;(2) Department of Earth Science, Faculty of Science, Ehime University, 2-5, Bunkyo-cho, Matsuyama 790, Japan, JP |
| |
Abstract: | In situ X-ray diffraction experiments of calcium ferrite-type MgAl2O4 have been carried out using a diamond anvil cell combined with synchrotron radiation and an imaging plate X-ray detector under hydrostatic pressures up to 9 GPa. The observed unit-cell volumes at various pressures were fitted to the Birch-Murnaghan equation of state, yielding a bulk modulus of K T 0= 241(3) GPa when K′ T 0=4 is assumed. This relatively large bulk modulus of calcium ferrite-type MgAl2O4 is consistent with that expected from the systematic relation between bulk modulus and molar volume for the most compounds possessing fcc oxygen packing. Received March 5, 1996/Revised, accepted October 15, 1996 |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|