Thermoelastic Equation of State of Monoclinic Pyroxene: CaMgSi2O6 Diopside.
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- Zhao Yusheng
- LANSCE, Los Alamos National Laboratory
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- Dreele R. B. Von
- LANSCE, Los Alamos National Laboratory
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- Zhang J. Z.
- CHiPR, State University of New York at Stony Brook
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- Weidner D. J.
- CHiPR, State University of New York at Stony Brook
書誌事項
- タイトル別名
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- Thermoelastic Equation of State of Mono
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We have conducted an in situ synchrotron x-ray diffraction study on a monoclinic pyroxene: CaMgSi2O6 diopside at simultaneous high pressures and high temperatures up to 8. 2 GPa and 1280 K. A modified Rietveld profile refinement program has been applied to refine the diffraction spectra of low symmetry and multiple phases observed in energy dispersive mode. Thermoelastic parameters for diopside CaMgSi2O6 are derived by fitting the P-V-T data to the high-T Birch-Murnaghan equation of state. We obtained isothermal bulk modulus KTO =109. 1 GPa with a pressure derivative of bulk modulus K'=∂K/∂P=4. 84, temperature derivative of bulk modulus K=∂K/∂T=-2. 05×10-2 GPa/K, volumetric thermal expansivity α=a+ bT with values of a=2. 32×10-5K-1 and b=1. 88×10-8K-2.
収録刊行物
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- 高圧力の科学と技術
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高圧力の科学と技術 7 25-27, 1998
日本高圧力学会
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詳細情報 詳細情報について
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- CRID
- 1390001204381772288
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- NII論文ID
- 10002688604
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- NII書誌ID
- AN10452913
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- COI
- 1:CAS:528:DyaK1cXktFymsL8%3D
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- ISSN
- 13481940
- 0917639X
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- NDL書誌ID
- 4493828
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可
