A fracture mechanics approach to the adhesion of plasma sprayed coatings provides insights into the mechanism of adhesion. Thus the strain energy release rate for adhesive or cohesive failure may be related to microstructural features of coatings. Plastic deformation of coating lamellae and the effectiveness of contact between impinging droplets and the substrate or previously solidified material are important factors in determining coating properties.
Australian Welding Research,
Vol. 11, no. (Dec 1982), pp. 23-25