球磨参数对机械合金化制备碳化硅粉体的影响  

Effects of Ball Milling Techniques on SiC Powder by Mechanical Alloying

作　　者：高丽敏[1] 王振玲[1] 董胜敏[1] 

机构地区：[1]黑龙江科技学院,哈尔滨150027

出　　处：《表面技术》2010年第2期50-51,76,共3页Surface Technology

摘　　要：通过热力学计算分析石英与石墨反应的可行性。研究了机械合金化石英与石墨混合粉末的过程中,球磨工艺(球磨时间、球料比)对机械合金化过程的影响。试验结果表明,采用球料比50∶1,球磨机转速为300r/min,球磨时间为72 h时,体系提供了足够的能量生成碳化硅。SiO2 and C＇s react is analysised by theremodynamics count, The influences of ball milling techniques （ball minlling time, ball-to-powder mass ratio）on Mechanical Alloying of SiO2 and C mixed powders, in the process the alloying ,is invested. The results show that the higher ball milling energy may be obtained when the ball-to-powder mass ratio is 50：1, and rotation speed is 300 r/min. The solid-state reaction between SiO2 and C can be activated to compose SiC, with mechanical alloy in 72 hours.

关 键 词：热力学计算 机械合金化 球磨 

分 类 号：TG174.42[金属学及工艺—金属表面处理]