Pressure dependence of the melting temperature of metals.
Pressure dependence of the melting temperature of metals.
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DOI：
10.1103/physrevb.40.5929
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发表时间：
1989-09
期刊：
影响因子：
--
通讯作者：
Schlosser;Vinet;Ferrante
中科院分区：
文献类型：
--
作者：
Schlosser;Vinet;Ferrante
本文提出了一种分析金属熔化温度与压力关系实验数据的新方法。该方法结合了林德曼定律，德拜模型，和一阶状态方程与实验观察的Grueneisen参数除以体积是常数。据观察，基于这些假设，在没有相变的情况下，归一化的熔融温度的对数与归一化的压力的对数的曲线是直线。发现Al、Ag、Au、Cs、Cu、K、Na、Pt和Rb的标准化熔化温度-标准化压力曲线精确地满足线性关系。此外，这种技术提供了一个敏感的工具，用于检测相变。
A new method for the analysis of the experimental data for the pressure dependence of the melting temperature of metals is presented. The method combines Lindemann's law, the Debye model, and a first-order equation of state with the experimental observation that the Grueneisen parameter divided by the volume is constant. It is observed that, based on these assumptions, in the absence of phase transitions, plots of the logarithm of the normalized melting temperature versus the logarithm of the normalized pressure are straight lines. It is found that the normalized-melting--temperature versus normalized-pressure curves accurately satisfy the linear relationship for Al, Ag, Au, Cs, Cu, K, Na, Pt, and Rb. In addition, this technique provides a sensitive tool for detecting phase transitions.