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摘要: 利用Al、Cu、Pb的冲击熔化实验结果,并考虑到材料的Grneisen系数()从固态值向液态值过渡,通过Lindemann熔化定律标定了熔化曲线Tm()。由于Lindemann定律与Grneisen系数()密切相关,因此用冲击熔化实验标定Tm(),也间接标定了()。
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关键词:
- 冲击熔化 /
- Grneisen系数 /
- 实验标定
Abstract: The investigation of melting curve Tm() under high pressures has practical applications both for temperature induced softening of yield strength of materials and for the reasonable partitioning of the hot contributions from that of cold part. In this paper, we make use of the experimental results of shock melting of Al, Cu, Pb and take account of the transition of Grneisen coefficients () from solid state value to liquid-state value, and thus provide the scaling of melting curve Tm() through Lindemann melting law. Since Lindemann law is closely related with the Grneisen coefficient (), the scaling of Tm() by the experiment data of the shock melting temperature is equivalent to the scaling of () by experiment.-
Key words:
- shock melting /
- Grneisen coefficient /
- experimental scaling
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胡金彪, 经福谦, 程菊鑫. 铜的髙压声速和冲击熔化 [J]. 高压物理学报, 1989, 3(3): 187. Meyers M A. Dynamic Behavior of Materials [M]. New York: John Wiley Sons Inc, 1994: 218. Seitz F, Turnbull D. Entropies of Fusion and Vaporization [J]. Solid State Physics, 1964, 16: 404. Урлин В Д Плавление при Сверхвысоких Давления Полученных в Ударной Волне [J].ЖЭТФ, 1965, 49: 485. Romain J P, Migault A. Melting Curve and Gruneisen Coefficient for Aluminum [J]. J Phys Chem Solids, 1980, 41(4) : 323.
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