Abstract
Abstract Based upon the theoretical solutions of flat and wavy coatings bonded to an infinite substrate, conditions have been put forward for the micro-cracking normal and parallel to the coating–substrate interface in tension and compression. In this paper, these conditions have been used to investigate the micro-cracking in the ceramic coatings of carbon–carbon composites. Furthermore, from the solutions for plane strain, plane stress and three dimensional cases, the experimental phenomenon that cracks tend to occur at the center of a coating has been explained as a result of larger stress due to its plane strain-like condition compared with the stress near edges.
Published Version
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