双重加热法合成碳化硅晶须的研究

Study on Silicon Carbide Whiskers Synthesized by Double-heating Technique

本文给出了一种低成本、适用于大批量生产碳化硅晶须的新方法 ,以炭黑和SiO2 微粉为原料对用双重加热法合成碳化硅晶须进行了研究。研究表明 ,利用双重加热技术可以在较低合成温度 130 0℃下、较短合成时间 1.5h内得到平均直径为 0 .3μm、长度为 10～ 4 0 μm、生成率达

A new technique of producing silicon carbide whiskers with low cost and batch process is introduced in this paper. The silicon carbide whiskers synthesized by double heating,using carbon black and SiO 2 powders as raw materials,were studied. The results indicate that silicon carbide whiskers with the average diameter of 0 3μm and length of 10 40μm and high yield of 81% can be synthesized at a lower temperature of 1300℃ and within shorter time of 1.5h.