Please use this identifier to cite or link to this item: https://doi.org/10.1007/BF00356069
Title: Cyclic fatigue of a sintered Al2O3/ZrO2 ceramic
Authors: Duan, K.
Mai, Y.W.
Cotterell, B. 
Issue Date: Jan-1995
Citation: Duan, K., Mai, Y.W., Cotterell, B. (1995-01). Cyclic fatigue of a sintered Al2O3/ZrO2 ceramic. Journal of Materials Science 30 (20) : 5192-5198. ScholarBank@NUS Repository. https://doi.org/10.1007/BF00356069
Abstract: A systematic experimental and theoretical study on the crack growth behaviour of a sintered Al2O3/ZrO2 ceramic under cyclic loading is presented. It is found that in the cyclic fatigue experiments conducted on the single-edge-notched beam (SENB) geometry, for similar testing conditions, the crack growth rates are significantly faster than those under static fatigue. Al2O3/ZrO2 therefore suffers genuine mechanical fatigue. Further experiments with the compact tension (CT) geometry show that the mechanical fatigue effect arises mainly from the degradation of the bridging mechanism. A theoretical analysis based on the compliance technique and a power law relationship between the crack-wake bridging stress and the crack-face separation is developed to evaluate quantitatively the degradation of the bridging stress due to cyclic fatigue. © 1995 Chapman & Hall.
Source Title: Journal of Materials Science
URI: http://scholarbank.nus.edu.sg/handle/10635/92675
ISSN: 00222461
DOI: 10.1007/BF00356069
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