Spannungstolerante keramische Beschichtungen

摘要

A strain tolerant ceramic coating for use as an abrasive coating on a substrate is provided. The coating is prepared from a yttria and zirconia powder having an average particle size less than 40 microns. The coating is formed by depositing the powder on the substrate by a plasma spray process. The as-applied coating contains essentially no macrocracks, but a post-stressed coating contains a random distribution , population, and orientation of microcracks and macrocracks.