文献类型：期刊文献

中文题名：硅材料除硼处理

英文题名：Treatment to Remove Boron from Silicon

作者：何念银[1];艾韬[1];胡迎飞[1];郑金标[1]

机构：[1]华东理工大学材料学院,上海200237

年份：2009

卷号：50

期号：4

起止页码：197

中文期刊名：化学世界

外文期刊名：Chemical World

收录：北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：水蒸汽;硼;太阳能;多晶硅

外文关键词：steam; boron; solar energy; poly-silicon

摘要：对金属硅进行除硼处理,以解决定向凝固提纯硅对分凝系数大的硼的分离效果不明显难题。高温条件下向经过酸处理的硅粉通入蒸汽,硼经扩散与蒸汽反应。通过实验确定了硅粉粒径、反应温度和反应时间与除硼效果的关系。
To remove boron from metal-grade silicon had to solve the problem that the separation of boron in directional solidification was not obvious because of the large segregation coefficient of boron. Adding steam to acid-treated silicon powder at high-temperature, boron could diffuse, react with steam and ultimately be removed. The relations between silicon particle size, temperature, reaction time-and the efficiency of removing boron were established through experiments.