ISSN:
1573-4862
Keywords:
Bond strength
;
contacts
;
diffusion bonds
;
disbonds
;
distributed spring model
;
fractional bonded area
;
fractography
;
ultrasonic reflection coefficient
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Mathematics
Notes:
Abstract It has been shown that the acoustic response of imperfect interfaces may be described by a quasi-static spring model. In the present paper, experimental data on the geometry of the contacts between two diffusion-bonded blocks have been used to determine the “spring stiffness” of such interfaces which have been correlated with experimentally determined ultrasonic reflection coefficients. The correlation between the theoretical reflection coefficient and the “spring stiffness” was found to be in excellent agreement with experimentally-observed values, if the disbonds are of infinitesimally small thickness. For disbonds of finite thickness, the agreement is less satisfactory. Reasons for the discrepancy in the latter case are unknown at the present time.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00566000
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