【摘要】 以硅烷SiH4和乙炔C2H2为反应原料,采用激光诱导化学气相沉积制各(LICVD)理想纳米SiC粉体.用化学分析、X射线衍射(XRD)、透射电子显微镜(TEM)及比表面积(BET)等分析测试手段对粉体进行了表征,结果表明粉体中SiC含量高于98%,平均粒径为20nm,晶体结构为β SiC,粉体产率大于200g/h,粉体中含氧量低于1%.更多还原

【Abstract】 In this paper,ideal nanometer SiC powder was synthesized by laser Induced Chemical Vapor Deposition (LCVD) with SiH\-4+C\-2H\-2 as starting materials.The powder produced was characterized by chemical analysis,XRD,TEM and BET techniques.The results showed that the powder of β-SiC crystallizatiod had a purity of above 98% of SiC in weight with average diameter of 20?nm and less than 1% oxygen content in weight that was mainly absorbed at the surface of the powder.更多还原