| 石墨冲击压缩的理论研究 |
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| 引用本文： | 杨向东,张宏.石墨冲击压缩的理论研究[J].高压物理学报,1997,11(1):66-69. |
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| 作者姓名： | 杨向东 张宏 |
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| 作者单位： | 1. 中国工程物理研究院流体物理研究所，冲击波物理与爆轰物理实验室，四川成都 610003；2. 四川联合大学高温高压与原子分子科学研究所，四川成都 610065；3. 成都大学数理系，四川成都 610081 |
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| 摘 要： | 用统一的排列模型研究石墨在高压下的状态方程。能量由冷能、晶格振动和电子的热贡献三部分组成。利用上述模型计算了石墨的膨胀曲线及石墨的冲击压缩Hugoniot曲线，当V0＝5.29 cm3/mol时，计算结果与Morgan实验结果一致。
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| 关 键 词： | 石墨 金刚石 Hugoniot曲线 |
| 收稿时间： | 1996-09-10; |
Theoretical Studies on Hugoniot Curves of Graphite |
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| YANG Xiang-Dong,ZHANG Hong,ZENG Yong,WU Bao-Jian,CHENG Xin-Lu,HU Dong,JING Fu-Qian.Theoretical Studies on Hugoniot Curves of Graphite[J].Chinese Journal of High Pressure Physics,1997,11(1):66-69. |
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| Authors: | YANG Xiang-Dong ZHANG Hong ZENG Yong WU Bao-Jian CHENG Xin-Lu HU Dong JING Fu-Qian |
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| Institution: | 1. Laboratory for Shock Wave and Detonation Physics Research, Southwest Institute of Fluid Physics, Chengdu 610003, China;2. Institute of Atomic and Molecular Science at High Temperature and High Pressure, Sichuan Union University, Chengdu 610065, China;3. Department of Mathematics and Physics, Chengdu University, Chengdu 610081, China |
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| Abstract: | In this paper we have studied equation of state of graphite and diamond under high pressure with a unified scaling model. Simple additivity of the energy terms is assumed and the cold pressure curve is a modified Birch form. The lattice thermal effects can be computed by the Einstein model while the electronic contributions are represented by the low temperature form of heat capacity and energy. Using the above model, we have determined the expansion curves and Hugoniot curves of graphite under different initial conditions. |
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| Keywords: | graphite diamond Hugoniot curve |
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