Propagation characteristics of acoustic waves in a borehole surrounded by a viscoelastic medium with horizontal cracks

2021 ◽  
Author(s):  
Chong-Wang Yue ◽  
Xiao-Chun Li ◽  
Ji-Shan Xu ◽  
Bo Feng
Keyword(s):  
Acoustic Waves ◽  
Viscoelastic Medium ◽  
Propagation Characteristics

Analysis of propagation characteristics of Rayleigh surface acoustic waves on Yb0.33Al0.67N piezoelectric films/high-velocity substrates

2022 ◽  
Author(s):  
Masashi Suzuki ◽  
Shoji Kakio
Keyword(s):  
High Velocity ◽  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Film Surface ◽  
Layered Structures ◽  
Coupling Factor ◽  
Propagation Characteristics ◽  
Effective Coupling ◽  
Diamond Substrate ◽  
Coupling Factors

Abstract Piezoelectricity of YbAlN films has recently been shown to be almost as high as that of ScAlN films. YbAlN film surface acoustic wave (SAW) resonators are expected to have a high coupling factor. We theoretically investigated the propagation characteristics of first-mode Rayleigh SAWs (RSAWs) on Yb0.33Al0.67N film/high-velocity Si, sapphire, AlN, SiC, BN, and diamond substrates. The first-mode RSAWs on the YbAlN layered structures had high coupling factors, higher than those on ScAlN layered structures. An enhancement of the effective coupling factor of the first mode RSAWs was observed in polarity inverted YbAlN film/BN or diamond substrate structures.

Propagation Characteristics of Surface Acoustic Waves in ZnO/LiNbO3Structures

1993 ◽  
Vol 32 (Part 1, No. 5B) ◽  
pp. 2333-2336 ◽  
Author(s):  
Kiyoshi Nakamura ◽  
Toshiaki Hanaoka
Keyword(s):  
Acoustic Waves ◽  
Surface Acoustic Waves ◽  
Propagation Characteristics

Propagation Characteristics of Ion Acoustic Waves in an Ar/SF6Plasma

2000 ◽  
Vol 69 (6) ◽  
pp. 1925-1926 ◽  
Author(s):  
Ryuta Ichiki ◽  
Masako Shindo ◽  
Shinji Yoshimura ◽  
Kazunori Koga ◽  
Yoshinobu Kawai
Keyword(s):  
Acoustic Waves ◽  
Propagation Characteristics ◽  
Ion Acoustic Waves ◽  
Ion Acoustic

The nonlinear propagation of acoustic waves in a viscoelastic medium containing cylindrical micropores

2009 ◽  
Vol 18 (9) ◽  
pp. 3909-3917 ◽  
Author(s):  
Feng Yu-Lin ◽  
Liu Xiao-Zhou ◽  
Liu Jie-Hui ◽  
Ma Li
Keyword(s):  
Acoustic Waves ◽  
Viscoelastic Medium ◽  
Nonlinear Propagation
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