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晶格振动和热电子对疏松金属材料冲击压缩特性的贡献

DOI: 10.11858/gywlxb.2005.04.011, PP. 348-352

Keywords: 疏松材料,Hugoniot物态方程,Grü,neisen物态方程,吴-经物态方程,电子气模型

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Abstract:

根据固体晶格的谐振子模型、热电子的自由电子气模型以及Grüneisen物态方程,仅通过简洁的代数运算分别导出晶格振动、热电子对疏松金属材料的冲击温度、冲击压强、乃至压缩体积贡献的计算公式。结果表明:晶格振动对冲击压缩体积的贡献分量计算公式与吴-经方程的推导结果在形式上具有很好的一致性,同时改进了热电子对体积贡献分量的计算公式。并论证了两个体积贡献分量表达式的合理性及其物理意义。

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