金属的对比Hugoniot线及其高压状态方程

本文通过对三十四种金属元素冲击压缩实验数据的综合,借助于对应态原理的对比方法,归纳得到了描述金属元素冲击压缩规律的普适经验公式——对比Hugoniot线;运用德拜近似理论,从所得到的对比Hugoniot线导出了对金属元素普适的高压状态方程。由此普适状态方程计算了镁、钒、铁、铜等十五种金属元素的冲击压缩线,计算结果与动力冲击压缩实验数据进行比较,符合情况较好。 关键词：

REDUCED HUGONIOT CURVE AND EQUATION OF STATE OF METALS UNDER HIGH-PRESSURES

In this article, through summarizing experimental data of shock-wave compression for thirty-four metallic elements, we have obtained a generally applicable empirical expression for the reduced Hugoniot curve, which describes the law of shock-wave compressions for metallic elements. In treating these data, the principle of corresponding state was employed. By utilizing the obtained reduced Hugoniot curve and basing on the Debye theory, we have derived a generally applicable equation of state for metallic elements under high pressures. We used this equation of state to calculate the pressure-compression curves for fifteen metallic elements (magnesium, iron, copper, etc). The comparison shows that the calculated values are in good agreement with experimental data.