Analysis for angular dispersions of surface acoustic wave velocities in BCC crystals

被引：5
|
作者：
Yin, Anmin [1 ,2 ]
Xu, Xiaodong [1 ]
Zhang, Shuyi [1 ]
Yan, Xuejun [3 ]
Lu, Minghui [3 ]
Chen, Yanfeng [3 ]
机构：
[1] Nanjing Univ, Lab Modern Acoust & Inst Acoust, Nanjing 210093, Peoples R China
[2] Ningbo Univ, Sch Mech Engn & Mech, Ningbo 315211, Zhejiang, Peoples R China
[3] Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
来源：
ULTRASONICS | 2021年 / 113卷
基金：
中国国家自然科学基金;
关键词：
BCC crystal; Surface acoustic wave; Angular dispersion; Optimized numerical method; Laser ultrasonics; SINGLE-CRYSTALS;
D O I：
10.1016/j.ultras.2021.106374
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Based on the propagation theory of acoustic waves in anisotropic media, the angular dispersion curves of SAW velocities propagated in some unusual oriented, such as (016)and (331)-oriented, Body-Centered Cubic (BCC) single crystals are simulated using an optimized numerical method. Meanwhile, the angular dispersion curves of SAW velocities propagated in these unusual oriented BCC single crystals are measured by Impulsive Stimulated Scattering (ISS) laser ultrasonic method, which show that the measurement results are in good agreement with those of the simulations. By the optimized numerical method, the relationships between the temperature and the dispersion curves of SAW velocity propagated in these single crystals are also simulated.
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收藏
页数：9
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