Patent ID: 6194083
Filing Date: 2001-02-27
Classification: C04B,C23C,Y10T

Abstract:
A ceramic composite material, comprising:a ceramic material constituting a matrix; anddispersion particles disposed in a dispersing manner in the matrix, and consisting of a composite oxide including at least a first metallic element selected from the group consisting of alkaline earth metals and at least a second metallic element selected from the group consisting of W, Ti, Ta, Mo, Nb, V, B, Te, Ge and Si,wherein the dispersion particles include acicular particles of the composite oxide incorporated inside crystal grains of the ceramic material, andwherein the ceramic composite material is produced by a method comprising:a forming step of forming a mixed powder by mixing a first powder containing the ceramic material and one of the selected first metallic element and the selected second metallic element, and a second powder containing the remaining selected metallic element; anda heat treating step of heat treating to precipitate the dispersion particles.