The Pressure and Temperature Dependence of Thermal Conductivity for Nonmetal Crystals
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摘要: 讨论了非金属晶体的导热系数k与压力p和温度T的相互关系。从理论上导出了低压和低温下的两个实验拟合关系式，即KT=A+Bp和kp＝A1+B1/T，其中A、B、A1、B1为拟合常数。计算结果与实验结果符合得非常好。此外，还讨论了k在高压、高温及冲击压缩下的响应。Abstract: The pressure (p) and temperature (T) dependences of thermal conductivity (k) for nonmetal crystals are discussed. The equations KT=A+Bp at low pressures and kp＝A1+B1/T at low temperatures that fitted from experimental data are developed in theory, where A, B, A1 and B1 are fitting constants and the subscripts T and p refer isothermal and isobaric, respectively. The calculated results are in good accord with the experimental result. The responses of k under high pressure-high temperature and shock compressions are discussed as well.
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Key words:
- thermal conductivity /
- shock compression /
- nonmetal crystal
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