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| Compressibility of pyrochlore-type MgZrSi2O7 determined by in situ X-ray diffraction in a large-volume high pressure apparatus | |
| Shuangmeng Zhai; Shuangming Shan; Daisuke Yamazaki; Ken-ichi Funakoshi | |
| 2013 | |
| 发表期刊 | High Pressure Research
 |
| 卷号 | 33期号:1页码:1-7 |
| 摘要 | The pyrochlore-type MgZrSi2O7 has been investigated by in situ synchrotron energy-dispersive X-ray diffraction measurements up 24.3 GPa at room temperature in a multianvil high pressure apparatus. The pressure has been calculated using an internal gold metal pressure calibrant. No phase transformation was observed in this study. A third-order Birch–Murnaghan equation of state was used to fit the pressure–volume data. The fitting gives a volume of V 0=802.8±0.2 Å3, an isothermal bulk modulus of K T =249±12 GPa, and first pressure derivative of K′ T =3.2±1.3. If K′ T is fixed as 4, K T is obtained as 241.8±2.6 GPa. Compared with zirconate or titanate pyrochlores, MgZrSi2O7 shows a smaller compressibility due to a larger cation radii ratio (r Mg, Zr /r Si). |
| 关键词 | Pyrochlore mgzrsi2o7 high Pressure x-ray Diffraction equation Of State |
| 收录类别 | SCI |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.gyig.ac.cn/handle/42920512-1/11105 |
| 专题 | 地球内部物质高温高压实验室 |
| 作者单位 | 1.Key Laboratory of Orogenic Belts and Crustal Evolution, Ministry of Education; School of Earth and Space Sciences, Peking University, Beijing, 100871, People's Republic of China 2.Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550002, People's Republic of China 3.Institute for Study of the Earth's Interior, Okayama University, Misasa, Tottori, 682-0193, Japan 4.Japan Synchrotron Radiation Research Institute, Sayo, Hyogo, 679-5198, Japan |
| 推荐引用方式 GB/T 7714 | Shuangmeng Zhai；Shuangming Shan；Daisuke Yamazaki；Ken-ichi Funakoshi. Compressibility of pyrochlore-type MgZrSi2O7 determined by in situ X-ray diffraction in a large-volume high pressure apparatus[J]. High Pressure Research,2013,33(1):1-7. |
| APA | Shuangmeng Zhai；Shuangming Shan；Daisuke Yamazaki；Ken-ichi Funakoshi.(2013).Compressibility of pyrochlore-type MgZrSi2O7 determined by in situ X-ray diffraction in a large-volume high pressure apparatus.High Pressure Research,33(1),1-7. |
| MLA | Shuangmeng Zhai；Shuangming Shan；Daisuke Yamazaki；Ken-ichi Funakoshi."Compressibility of pyrochlore-type MgZrSi2O7 determined by in situ X-ray diffraction in a large-volume high pressure apparatus".High Pressure Research 33.1(2013):1-7. |
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