| 摘要 |
PURPOSE:To produce a sintered AIN having dense texture and high thermal conductivity and electrical resistance and suitable as an insulation substrate, at a low cost, by adding a specific sintering assistant to AIN powder, forming the mixture and calcining in a non-oxidizing atmosphere. CONSTITUTION:The objective sintered AIN is produced by mixing 100 pts.wt. of AIN powder with (A) 0.05-5 pts.wt. (in terms of oxide) of one or more components selected from Y, Sc and lanthanoid and (B) 0.01 to 5 pts.wt. of one or more elements selected from metallic Li, metallic Be, metallic Mg, B, Si, S, P, As and metallic Zn, forming the mixture and calcining at 1400 to 2000 deg.C in a non-oxidizing atmosphere. |
