Pressure-induced phase transition of lead phosphate Pb-3(PO4)(2): X-ray diffraction and XANES
文献类型：期刊论文
| 作者 | Qin, F ; Wu, X ; Zhai, SM ; Qin, S ; Yang, K ; Chen, DL ; Li, YC |
| 刊名 | PHASE TRANSITIONS
 |
| 出版日期 | 2014 |
| 卷号 | 87期号:12页码:1255—1264 |
| 关键词 | TRICALCIUM PHOSPHATE DENSE POLYMORPH 15 GPA GAMMA-CA-3(PO4)(2) TUITE APATITE MANTLE RENORMALIZATION CA3(PO4)2 STABILITY |
| ISSN号 | 0141-1594 |
| 通讯作者 | xiang.wu@pku.edu.cn |
| 英文摘要 | Lead phosphate Pb-3(PO4)(2) was investigated by in situ synchrotron radiation X-ray diffraction and X-ray absorption near-edge structure (XANES) combined with diamond anvil cell technique up to 60.9 GPa. A pressure-induced phase transition of Pb-3(PO4)(2) was observed from monoclinic (C2/c) to trigonal ( [GRAPHICS] ) phases at about 1.7 GPa at room temperature. The high-pressure annealing experiment indicates that the trigonal phase of Pb-3(PO4)(2) is stable at least up to 60.9 GPa. Isothermal pressure-volume relationship of trigonal Pb-3(PO4)(2) is well described by the third-order Birch-Murnaghan equation of state with V-0 = 533(1) angstrom(3), K-0 = 89(4) GPa and K-0(') = 5.8(2). In trigonal Pb-3(PO4)(2), the a-axis is more compressible than the c-axis, showing an anisotropy elasticity. XANES results reveal the evolution of Pb local environment, i.e. the first-shell coordination number of Pb1 changes from 9 to 12 and the average Pb-O bond length increases at the crossover of C2/c-to- [GRAPHICS] phase transition. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000346340900006 |
| 公开日期 | 2015-03-13 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/14331]  |
| 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 | Qin, F,Wu, X,Zhai, SM,et al. Pressure-induced phase transition of lead phosphate Pb-3(PO4)(2): X-ray diffraction and XANES[J]. PHASE TRANSITIONS,2014,87(12):1255—1264. |
| APA | Qin, F.,Wu, X.,Zhai, SM.,Qin, S.,Yang, K.,...&Li, YC.(2014).Pressure-induced phase transition of lead phosphate Pb-3(PO4)(2): X-ray diffraction and XANES.PHASE TRANSITIONS,87(12),1255—1264. |
| MLA | Qin, F,et al."Pressure-induced phase transition of lead phosphate Pb-3(PO4)(2): X-ray diffraction and XANES".PHASE TRANSITIONS 87.12(2014):1255—1264. |
入库方式： OAI收割
来源：上海应用物理研究所
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