Cracking and delamination of coatings

Publisher Website
Google Scholar
Abstract
The mechanism by which a coating will fail is governed by a number of parameters. These include not only the properties of the coating, interface, and substrate, but also the distribution of stresses. If the coating is under a residual tensile stress, there are at least three possible mechanisms by which failure can occur. For example, a brittle coating may fracture by the development of cracks through the thickness of the film. Tougher coatings may fail by delamination along the interface or even by the propagation of a crack within the substrate. The failure mechanism associated with a compressive stress in the coating involves simultaneous buckling and delamination. This paper reviews these different modes of failure and discusses the conditions that determine which ones will operate.

This publication has 0 references indexed in Scilit: