High-pressure X-ray diffraction and Raman spectroscopy of CaFe2O4-type beta-CaCr2O4 | |
Zhai, SM; Yin, Y; Shieh, SR; Shan, SM; Xue, WH; Wang, CP; Yang, K; Higo, Y | |
刊名 | PHYSICS AND CHEMISTRY OF MINERALS |
2016 | |
卷号 | 43期号:4页码:307—314 |
关键词 | FERRITE-TYPE MGAL2O4 EQUATION-OF-STATE CALCIUM-FERRITE LOWER-MANTLE PHASE-TRANSITIONS CRYSTAL-STRUCTURE CHROMITE DIAMOND TRANSFORMATIONS CHEMISTRY |
ISSN号 | 0342-1791 |
通讯作者 | Zhai, SM (reprint author), Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Ea, Guiyang 550081, Peoples R China. |
英文摘要 | In situ high-pressure synchrotron X-ray diffraction and Raman spectroscopic studies of orthorhombic CaFe2O4-type beta-CaCr2O4 chromite were carried out up to 16.2 and 32.0 GPa at room temperature using multi-anvil apparatus and diamond anvil cell, respectively. No phase transition was observed in this study. Fitting a third-order Birch-Murnaghan equation of state to the P-V data yields a zero-pressure volume of V-0 = 286.8(1) angstrom(3), an isothermal bulk modulus of K-0 = 183(5) GPa and the first pressure derivative of isothermal bulk modulus K-0' = 4.1(8). Analyses of axial compressibilities show anisotropic elasticity for beta-CaCr2O4 since the a-axis is more compressible than the b- and c-axis. Based on the obtained and previous results, the compressibility of several CaFe2O4-type phases was compared. The high-pressure Raman spectra of beta-CaCr2O4 were analyzed to determine the pressure dependences and mode Gruneisen parameters of Raman-active bands. The thermal Gruneisen parameter of beta-CaCr2O4 is determined to be 0.93(2), which is smaller than those of CaFe2O4-type CaAl2O4 and MgAl2O4. |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000373309600006 |
内容类型 | 期刊论文 |
源URL | [http://ir.sinap.ac.cn/handle/331007/25745] |
专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
推荐引用方式 GB/T 7714 | Zhai, SM,Yin, Y,Shieh, SR,et al. High-pressure X-ray diffraction and Raman spectroscopy of CaFe2O4-type beta-CaCr2O4[J]. PHYSICS AND CHEMISTRY OF MINERALS,2016,43(4):307—314. |
APA | Zhai, SM.,Yin, Y.,Shieh, SR.,Shan, SM.,Xue, WH.,...&Higo, Y.(2016).High-pressure X-ray diffraction and Raman spectroscopy of CaFe2O4-type beta-CaCr2O4.PHYSICS AND CHEMISTRY OF MINERALS,43(4),307—314. |
MLA | Zhai, SM,et al."High-pressure X-ray diffraction and Raman spectroscopy of CaFe2O4-type beta-CaCr2O4".PHYSICS AND CHEMISTRY OF MINERALS 43.4(2016):307—314. |
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