摘要
主要分析了碳热还原法制备碳化硅的动力学。通过动力学分析,计算了Si-C反应的动力学参数,估算了不同粒径的反应物在不同温度下完全转化为SiC所需的时间。结果表明,反应物粒径为1μm时,在1900K左右,反应完成的时间只要将近1h。
Kinetic analysis of silicon carbide prepared by carbon-thermal reduction is introduced. Through the dynamic analysis, kinetic parameters of Si-C are calculated, and the reaction time required that materials of different diameter completely converted to SiC at different temperatures is estimated. The results demonstrate reaction time is nearly 1 hour long when the reaction particle diameter is 1μm around 1900K.
基金
唐山市科学技术研究与发展计划项目(11110210B-6-5)
关键词
碳热还原法
SIC
动力学分析
carbon thermal reduction, silicon carbide, dynamics analysis
