Title :
Reflection by defective diffusion bonds
Author :
Achenbach, J.D. ; Xu, Y.
Author_Institution :
Center for Quality Eng. & Failure Prevention, Northwestern Univ., Evanston, IL, USA
Abstract :
The reflection of ultrasonic wave motion by planar defect distributions is investigated with a view towards developing a method for detecting and characterizing bond-plane defects and with an ultimate objective of providing information on the bond strength of metal-to-metal bonds. The authors are primarily concerned with an approximate approach to analyzing reflection by cavities and cracks distributed in a bond plane. The results show some of the characteristic features of reflection with variation of such parameters as angle of incidence, frequency, defect size, defect shape, and defect spacing
Keywords :
crack detection; ultrasonic reflection; ultrasonic waves; voids (solid); bond strength; cavities; cracks; defect shape; defect size; defect spacing; defective diffusion bonds; diffusion bonds; frequency; incidence angle; metal-to-metal bonds; planar defect distributions; reflection; ultrasonic wave motion; Bonding; Failure analysis; Frequency; Information analysis; Motion analysis; Motion detection; Reflection; Shape; Surface waves; Turbines;
Conference_Titel :
Ultrasonics Symposium, 1989. Proceedings., IEEE 1989
Conference_Location :
Montreal, Que.
DOI :
10.1109/ULTSYM.1989.67161
