OALib Journal期刊
ISSN: 2333-9721
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立方晶体超声物态方程弹性参数的高压测量
DOI: 10.11858/gywlxb.1994.04.006, PP. 279-284
Keywords: 立方晶体,物态方程,弹性参数,高压
Abstract:
用超声脉冲回波重合技术(PEO),在0.1~500MPa流体静压力范围,测量了立方晶体Si和Bi12GeO20中沿[100]、[110]和[111]方向传播的纯纵波和切变波自然声速值随压力的变化。根据有限形变理论,由声速与压力关系的实验结果。确定了立方晶体Si和Bi12GeO20超声物态方程的弹性参数(含三阶和四阶弹性常数)。
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