Xiang, D.
, Hsu, N.
and Blessing, G.
(1998),
A Simplified Ultrasonic Immersion Technique for Materials Evaluation, Materials Evaluation
(Accessed December 14, 2024)
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A Simplified Ultrasonic Immersion Technique for Materials Evaluation
Published
Author(s)
D Xiang, ,
Abstract
A simplified ultrasonic immersion technique has been developed to measure leaky surface and bulk waves in solid materials by using specially designed lensless, line focus polyvinylidene fluoride (PVDF) transducers with a large aperture and a short focal distance. Based on a simple methodology, this technique offers precise velocity measurements for these wave types, from which material properties, such as the elastic moduli, can be determined. Directional leaky wave measurements with this technique have been used to detect material anisotropy, as well as to determine the depth and orientation of a surface crack. The effects of plasma-spray conditions on the acoustic properties of sprayed ceramic coatings possessing rough surfaces and porous microstructures have also been measured using this technique.Citation
Materials Evaluation
Volume
Vol. 56 (7)
Issue
No. 7
Pub Type
Journals
Keywords
material characterization, ultrasonic detection, Ultrasonics
Citation
Issues
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Created December 31, 1997, Updated October 12, 2021