The thermal stresses in a ceramic coating bonded to a metal substrate generated by heat flux conditions in an engine were studied. Edge delamination of the coating was related to the displacements of an interface crack between the ceramic and the metal. The effects of varying the thermal expansion coefficients of the ceramic, the bond coat and the metal, thin moduli of elasticity, their thicknesses and the initial stress-free temperature were determined.

Issue Section:
Research Papers
Topics:
Ceramic coatings, Engines, Heat flux, Metals, Thermal stresses, Ceramics, Coating processes, Coatings, Delamination, Elastic moduli, Fracture (Materials), Stress, Temperature, Thermal expansion
This content is only available via PDF.
Copyright © 1992
 by The American Society of Mechanical Engineers
You do not currently have access to this content.