真空メカノフュージョン法によるMo-Al_2O_3複合粒子の作製とそれらの放電プラズマ焼結における焼結特性 Preparation of Mo-Al_2O_3 Composite Particles by Vacuum Mechanofusion Process, and the Sintering Property of the Compacts Sintered from the Composite Powders by Spark Plasma Technique
We had reported the vacuum mechanofusion prpoedure, applied to Mo-A1<SUB>2</SUB>O<SUB>3</SUB> composite in air or under low pressure. This paper describes the result of trying the Mo particle coating on A1<SUB>2</SUB>O<SUB>3</SUB> core particles with different Mo content. It was found that the more Mo particles remained not consumed for the composite particles, as the Mo particle composition in the mixed particles increased. Furthermore, the Mo-A1<SUB>2</SUB>O<SUB>3</SUB> composite powders obtained was sintered to compact by spark plasma technique. As the results, it was found that the compact prepared from the composite powder was more improved in density than the compact prepared from the mixed powders, and this effect was remarkable in early stage of sintering. It was dear that the density of sintered compacts became higher as Mo content of composite particles increased.
粉体および粉末冶金 43(8), 1055-1060, 1996-08-15
Japan Society of Powder and Powder Metallurgy