| 3种典型面心立方金属的超声物态方程比较研究 |
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| 引用本文： | 张婷,毕延,王光昶,赵敏光,陈涛. 3种典型面心立方金属的超声物态方程比较研究[J]. 材料导报, 2010, 24(20) |
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| 作者姓名： | 张婷 毕延 王光昶 赵敏光 陈涛 |
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| 作者单位： | 成都医学院物理教研室,成都,610083;中国工程物理研究院,绵阳,621900;四川师范大学固体物理研究所,成都,610068 |
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| 基金项目： | 四川省教育厅科研项目(09ZC029); 成都医学院院基金(CYZ08-016) |
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| 摘 要： | 旨在通过对各种解析物态方程的对比研究,试图寻找一种可以利用较低压力下的超声测量数据建立在较宽广的压力范围内适用于简单面心立方金属的等温物态方程模型。对于Al、Cu、Ag3种面心立方金属,结合实测DAC实验数据对比研究了基于较低压力下的超声测量数据计算的各种解析状态方程适用的压力范围,发现目前尚不存在一种完全适用于材料从低压段到极高压力区的物态方程模型,而从较低压力下得到的超声测量数据出发,选取Vinet等温物态方程模型,可以在相当高的压力范围内(对铝约200GPa,对于铜和银约100GPa)很好地描述几种面心立方金属的压缩性。
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| 关 键 词： | 高压物理学 评述 超声测量 物态方程 |
Study on the Ultrasonic Equation of State for Three fcc Metals |
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| ZHANG Ting,BI Yan,WANG Guangchang,ZHAO Mingguang,CHEN Tao. Study on the Ultrasonic Equation of State for Three fcc Metals[J]. Materials Review, 2010, 24(20) |
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| Authors: | ZHANG Ting BI Yan WANG Guangchang ZHAO Mingguang CHEN Tao |
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| Affiliation: | ZHANG Ting1,BI Yan2,WANG Guangchang1,ZHAO Mingguang3,CHEN Tao1(1 Chengdu Medical College,Chengdu 610000,2 Laboratory for Shock Wave , Detonation Physics Research,Institute ofFluid Physics,CAEP,Mianyang 621900,3 Institute of Solid State Physics,Sichuan Nomaral University,Chengdu 610068) |
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| Abstract: | By comparing of different equations of state, one equation of state, which can be applied in wide range of pressures for fcc metals is found. The equations of state for fcc metals: Al,Cu,Ag have been studied with ultrasonic data. When compared with experimental DAC data, it is found that there is no equation of state, which can describe the compressibility for any materials from low pressures to ultrahigh pressures. However, the Vinet isothermal equation of state can describe the compressibility for fcc met... |
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| Keywords: | high pressure physics comment ultrasonic measurement equation of state |
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