Strain effects on surface acoustic wave velocities in modified PbTiO3ceramics

1981 ◽  
Vol 52 (10) ◽  
pp. 6147-6150 ◽  
Author(s):  
Hiroshi Takeuchi ◽  
Hisao Yamauchi
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Strain Effects ◽  
Wave Velocities

Contactless ultrasonic device to measure surface acoustic wave velocities versus temperature

2007 ◽  
Vol 78 (2) ◽  
pp. 024901 ◽  
Author(s):  
C. Hubert ◽  
M.-H. Nadal ◽  
G. Ravel-Chapuis ◽  
R. Oltra
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Ultrasonic Device ◽  
Wave Velocities

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

Ultrasonics ◽  
2021 ◽  
Vol 113 ◽  
pp. 106374
Author(s):  
Anmin Yin ◽  
Xiaodong Xu ◽  
Shuyi Zhang ◽  
Xuejun Yan ◽  
Minghui Lu ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Velocities

Characterization of Stress at a Ceramic/Metal Joined Interface by the Vz Technique of Scanning Acoustic Microscopy

2002 ◽  
Vol 124 (3) ◽  
pp. 336-342 ◽  
Author(s):  
Chiaki Miyasaka ◽  
Bernard R. Tittmann ◽  
Shun-Ichiro Tanaka
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Wave Velocity ◽  
Dissimilar Materials ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Wave Velocities

It is well known that the process of heating and then cooling dissimilar materials introduces considerable stress at and near the interface. In this article, first, the surface wave velocity distributions obtained with the Vz curve technique were found to compare well with residual stress distribution measured by the finely collimated X-ray diffraction technique. Second, a delamination was introduced at the interface. The Vz curve technique was then used again to measure the surface acoustic wave velocity along the interface. The defective specimens showed significantly different patterns of surface acoustic wave velocities. Thus, this study presents useful guidelines in discriminating between sound and defective ceramic/metal joints by scanning acoustic microscopy.

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