On the evaluation of coating-substrate adhesion by indentation experiments

摘要

An overview of an energy-related approach for the evaluation of depth-sensing indentation measurements and their application to the evaluation of adhesion-related phenomena of thin films and coatings is given. As adhesion-related phenomena are considered internal stresses and crack formation of the coatings as well as an interface specific energy consumption during the penetration of the indenter into the coating-substrate system. The phenomena are discussed in relation to experimental effects. Experimental case studies are presented for multilayer structures of inkjet microheater systems as well as for single and multilayer hard coating systems.