Gespritzter Yttriumoxid-Aluminiumoxidverbundfilm

摘要

An object of the invention is to provide a film of an yttria-alumina complex oxide having a high peel strength of the film to a substrate. A mixed powder of powdery materials of yttria and alumina is sprayed on a substrate to form a sprayed film made of an yttria-alumina complex oxide. Preferably, the powdery material of yttria has a 50 percent mean particle diameter of not smaller than 0.1 mu m and not larger than 100 mu m, and the powdery material of alumina has a 50 percent mean particle diameter of not smaller than 0.1 mu m and not larger than 100 mu m. Preferably, the yttria-alumina complex oxide contains at least garnet phase, and may further contain perovskite phase.