摘要
以铝锆碳滑板基质部分为研究对象，以金属硅粉、石墨和碳黑为原料，混合后在埋碳气氛下，于1200-1600℃范围内进行高温处理。通过透射电镜和能谱仪分析，研究发现碳化硅晶须为哑铃状，并且随着热处理温度升高，哑铃状小球慢慢减少，在这个过程中，SiC晶须的生长机理为气-固反应模型。
This paper studies the matrix of Al2O3-ZrO2-C slide gate using materials of silicon powder, graphite and carbon mixed and treated in coke powder at 1 200-1 600 ℃. By means of transmission electro microscope （TEM） and spectrometer analyses, SiC whisker in the matrix was found to be dumbbell-like and it could become smaller with temperature increasing. In this condition, the growth mechanism of SiC whisker is controlled by gas-solid reaction.
出处
《钢铁研究》
CAS
2007年第3期8-11,共4页
Research on Iron and Steel
基金
湖北省自然基金资助项目(2006ABA287)
关键词
SIC晶须
机理
铝锆碳滑板
SiC whisker
growth mechanism
Al2O3-ZrO2-C slide gate
