文献类型：期刊文献

中文题名：电场和气压对激光合成SiC超细粉末的影响

英文题名：Effects of Electric Field and Gas Pressure on Laser Synthesis of SiC Ultrafine Powders

作者：金桂林[1];金晓英[1];潘孝仁[1];金乾元[1];尤湧[1]

机构：[1]华东化工学院应用物理系

年份：1993

卷号：19

期号：5

起止页码：648

中文期刊名：华东化工学院学报

外文期刊名：Huadong Huagong Xueyuan Xuebao/Journal of East China Institute of Chemical Technology

收录：国家哲学社会科学学术期刊数据库;EI(收录号：1994081353693);Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：电场;碳化硅;陶瓷粉末;激光诱导

外文关键词：ultrafine powder; laser; electric field; silicon carbide; tetramethyl silicane

摘要：用TEA CO_2激光诱导四甲基硅烷(TMS)的气相反应,生成了纯而均匀的SiC超细粉末,粒径小于0.2μm。把反应物置于均匀外电场中,可以使引发化学反应时所需的激光功率密度阀值降低一倍。TMS气压可达到40kPa。讨论了气体分压比对反应速度、产率与产物成分的影响。
Pure and homogeneous SiC ultrafine powders were synthesized from tetramethyl silicane (TMS) through the vapor phase reaction induced by TEA CO_2 laser. The particle size is less than 0.2μm. Putting the reactants in uniform electric field, we reduced the laser power density threshold needed by said reaction by a factor of two. The vapor pressure of TMS reached 40kPa. The effects of gas pressure on reaction rate, yield, and product composition were discussed.