JSME International Journal Series A Solid Mechanics and Material Engineering
Online ISSN : 1347-5363
Print ISSN : 1344-7912
ISSN-L : 1344-7912
Cyclic Fatigue Characteristics and Crack Extension of a Ceramic/Metal Joint
Weiping LINYoshio ARAIEiichiro TSUCHIDA
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1998 Volume 41 Issue 3 Pages 389-394

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Abstract

Fatigue strength and crack propagation characteristics of ceramic/metal joints were investigated under cyclic bending loading. Fracture surfaces were examined by SEM and X-ray methods. Fatigue fracture occurred at the metal/interlayer interface as well as the ceramic/interlayer interface. Fatigue strength was independent of the fracture path. Fatigue crack initiated and grew on the ceramic/interlayer interface at the specimen corner. Under constant amplitude cyclic loading, the fatigue crack decelerated and finally halted. Under increasing amplitude cyclic loading, the final fracture occurred at the metal/interlayer interface. Even under cyclic compressive loading, fatigue cracks were initiated on the ceramic/interlayer interface.

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© The Japan Society of Mechanical Engineers
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