自由电子气模型计算金属材料冲击压缩极限压缩度  

Calculation for shock compression limitation of metal materials based on a free-electron gas model

作　　者：顾云军[1] 蔡灵仓[1] 陈其峰[1] 陈志云[1] 经福谦[1] 

机构地区：[1]中国工程物理研究院流体物理研究所冲击波物理与爆轰物理实验室,绵阳621900

出　　处：《原子与分子物理学报》2007年第2期384-386,共3页Journal of Atomic and Molecular Physics

基　　金：中国工程物理研究院冲击波物理和爆轰波物理国家重点实验室基金(9140C67120206ZS7502;51478678905ZS7501)

摘　　要：用简单的自由电子气模型对金属铁、铜、铝、铅的冲击压缩特性进行了数值计算,计算结果表明材料并不能无限地被压缩,存在极限压缩度,随着压缩度的增加,在冲击压力增加的同时,冲击温度也急剧上升,限制了材料的进一步压缩,本文计算的这几种材料的极限压缩度为3.9.The Shock compression properties of the metals Iron、Copper、Aluminum and Lead respectively were calculated and evaluated numerically by a simple free-electron gas model. Calculations show that the materials cannot been arbitrarily compressed and have a shock compression limitation. When pressures increase the shock temperatures have also a steep rise to block continuous compression of materials and the maximum compression can be able to reach 3.9fold of initial density.

关 键 词：极限压缩度 自由电子气模型 

分 类 号：O521[理学—高压高温物理]