Mechanical-activation-assisted combustion synthesis of SiC

作者：Yang Kun^*; Yang Yun; Lin Zhi Ming; Li Jiang Tao

来源：Journal of Inorganic Materials, 2007, 22(2): 263-267.

• mechanical activation
• combustion synthesis
• promoter
• SiC

Mechanical-activation-assisted combustion synthesis of Sic was conducted with PVC and/or NH4Cl as promoters. The mechanical activation of the Si-C reactants through high-energy attrition milling results in substantial decrease of the ignition temperature and the incubation time for the Si-C combustion reaction. Ultra-fine beta-SiC powders with equiaxed grains can be synthesized at the preheating temperature as low as 1050 degrees C. The specific surface area (SSA) of the combustion synthesized Sic powders is 4.36m(2)/g, and the average particle size is less than 5 mu m.

• 出版日期2007-3
• 单位中国科学院理化技术研究所; 中国科学院大学