| 摘要 |
PURPOSE:To obtain the subject sintered body having remarkably increased heat conductivity, superior electrical, mechanical and optical characteristics by mixing AlN powder with C and one or more kinds of acetylide compds. of alkaline earth metals selected among MgC2, CaC2, SrC2 and BaC2 as additives, molding the mixture and sintering the molded body in a nonoxidizing atmosphere. CONSTITUTION:AlN powder having <=10mum average particle size and >=95% purity is mixed with 0.1-2wt.% C and 0.02-5wt.% one or more kinds of acetylide compds. of alkaline earth metals selected among MgC2, CaC2, SrC2 and BaC2 as additives by means of a nonaq. solvent such as alcohol. The mixture is molded and the molded body is sintered at 1,500-2,000 deg.C in a nonoxidizing atmosphere, e.g., in N2. |
