| 立方晶体Bi12GeO20的三阶弹性常数 |
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| 引用本文： | WU Kun-yu,SHAO Ji-hong,吴昆裕,邵继红. 立方晶体Bi12GeO20的三阶弹性常数[J]. 中国科学技术大学学报, 2001, 31(2): 197-201 |
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| 作者姓名： | WU Kun-yu SHAO Ji-hong 吴昆裕 邵继红 |
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| 作者单位： | 1. Department of Electronic Engineering and Information Science, USTC,
2. 中国科学技术大学电子工程与信息科学系, |
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| 基金项目： | TheprojectsupportedbyNSFC(195 740 43)andbyKeyStateLab .ofModernAcousticsofNanjingUniversity |
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| 摘 要： | 用超声脉冲回波重合方法测量了立方晶体Bi12GeO20中九种不同模式纯纵波和切变波自然声速值随流体静压力和单轴压力的变化关系，由此实验结果：用Thurston,Brugger的理论，确定了Bi12GeO20晶体全部独立的三阶弹性常数。
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| 关 键 词： | 立方晶体 Bi12GeO20 三阶弹性常数 声速 |
Third-order Elastic Constants of Bi_(12)GeO_( 20) Crystal |
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| WU Kun-yu,SHAO Ji-hong. Third-order Elastic Constants of Bi_(12)GeO_( 20) Crystal[J]. Journal of University of Science and Technology of China, 2001, 31(2): 197-201 |
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| Authors: | WU Kun-yu SHAO Ji-hong |
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| Abstract: | By using of the ultrasonic pulse-echo overlap technique, the dependence of natural wave velocity on the hydrostatic pressure and uniaxial stress in cubic crystal Bi 12 GeO 20 was measured for various longitudinal and shear elastic modes. From the experimental results, the values of all independent second- and third-order elastic stiffness constants of Bi 12 GeO 20 crystal were determined by means of the theory proposed by Thurston and Brugger. |
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| Keywords: | third-order elastic constants Bi 12 GeO 20 cubic crystal |
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