PURPOSE: To provide two or more functions among heat resistance, abrasion resistance, strength, toughness, heat conductivity and electric conductivity by blending Al oxide with carbide, nitride and boride of Ti and Zr at a specific amount.
CONSTITUTION: 50-99wt.% Al oxide is blended with ≤30wt.% carbide, ≤30wt.% nitride or ≤15wt.% boride of both or either one of Ti and Zr. The resultant blend is sintered under an atmosphere of N2 and pressure to form the multifunctional multi-dimensional ceramics, or an oxide of Zr is blended with carbide and nitride of Si and boride of Zr or oxide of Zr is blended with carbide of Hf, nitride of Zr and boride of Ti or nitride of Al is blended with carbide of Hf and boride of Ti to form the multifunctional multi-dimensional ceramics. One or more kind of oxides selected from Y, Ce, Dy, Sm and Tm are, as necessary, blended with these blends. The resultant ceramics can be used as various industrial raw materials according to the functions.
ITSUDO YASUHIRO
YONEZAWA TAKESHI
MIZUTANI TOSHIAKI
