High-pressure in-situ X-ray diffraction and Raman spectroscopy of Ca2AlFeO5 brownmillerite
文献类型：期刊论文
| 作者 | Li, ZM; Yin, Y; Rumney, JD; Shieh, SR; Xu, JG; Fan, DW; Liang, W; Yan, S; Zhai, SM |
| 刊名 | HIGH PRESSURE RESEARCH
 |
| 出版日期 | 2019 |
| 卷号 | 39期号:1页码:92—105 |
| 关键词 | EQUATION-OF-STATE PHASE-TRANSITION MGSIO3 PEROVSKITE ALUMINUM SUBSTITUTION SERIES IRON COMPRESSIBILITY MECHANISM VACANCIES |
| ISSN号 | 0895-7959 |
| DOI | 10.1080/08957959.2019.1571587 |
| 文献子类 | 期刊论文 |
| 英文摘要 | The behavior of Ca2AlFeO5 brownmillerite was studied by in situ synchrotron X-ray diffraction and Raman spectroscopy at 300 K with pressures up to 26.5 and 32.1 GPa, respectively. A reversible structural phase transition was observed. The P-V data were fitted by a third-order Birch-Murnaghan equation of state, and the isothermal bulk modulus was obtained as K-0 = 181.9(76) GPa with K-0 ' = 4.4(17). If K-0 ' was fixed to 4, K-0 was obtained as 183.8(20) GPa. Ca2AlFeO5 brownmillerite shows an axial elastic anisotropy since the b-axis is more compressible than a- and c-axis. Combined with previous results, the isothermal bulk modulus and axial compressibility of Ca2AlFeO5 brownmillerite increase with more Al incorporated in the structure. The Raman spectra of Ca2AlFeO5 brownmillerite were analyzed and the pressure coefficients vary from 2.23 to 4.90 cm(-1)/GPa. The isothermal mode Gruneisen parameters range from 0.83 to 1.77 and the thermal Gruneisen parameter is determined as 1.08(11). |
| 语种 | 英语 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/31660]  |
| 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 |
| 作者单位 | 1.Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Earths In, Guiyang 550081, Guizhou, Peoples R China; 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai, Peoples R China 3.Univ Western Ontario, Dept Earth Sci, London, ON, Canada; 4.Univ Chinese Acad Sci, Beijing, Peoples R China; |
| 推荐引用方式 GB/T 7714 | Li, ZM,Yin, Y,Rumney, JD,et al. High-pressure in-situ X-ray diffraction and Raman spectroscopy of Ca2AlFeO5 brownmillerite[J]. HIGH PRESSURE RESEARCH,2019,39(1):92—105. |
| APA | Li, ZM.,Yin, Y.,Rumney, JD.,Shieh, SR.,Xu, JG.,...&Zhai, SM.(2019).High-pressure in-situ X-ray diffraction and Raman spectroscopy of Ca2AlFeO5 brownmillerite.HIGH PRESSURE RESEARCH,39(1),92—105. |
| MLA | Li, ZM,et al."High-pressure in-situ X-ray diffraction and Raman spectroscopy of Ca2AlFeO5 brownmillerite".HIGH PRESSURE RESEARCH 39.1(2019):92—105. |
入库方式： OAI收割
来源：上海应用物理研究所
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