COMPLEX COMPOSITIONAL OXIDES WITH LOW THERMAL CONDUCTIVITY IN HIGH TEMPERATURE ENVIRONMENTS FOR THERMAL PROTECTION COATING AND METHOD OF MANUFACTURING THE SAME

摘要

A composite oxide capable of improving the durability of parts by shielding heat in a high temperature environment due to low thermal conductivity at a high temperature, and a method for producing the composite oxide are disclosed. The low-temperature conductive complex oxide for high temperature environmental thermal insulation according to the present invention is represented by A ₂ B ₂ O ₇ , wherein A is La _x Gd _1-x (0 x 1) and B is Zr _y Ce _{1 -y} 0 y 1), which is obtained by weighing raw material powders to be a raw material of the composite oxide; Mixing and pulverizing the raw material powders; Charging the pulverized powder into a mold and press-molding the powder; And sintering the resultant press-molded product.