从钨加热钼坩埚中熔体生长刚玉单晶体  

Corundum Single Crystal Crown from the Melt Contained in Molybdenum Crucible with a Tungsten Heater

作　　者：蒋学渊[1] 钱苗根[1] 

机构地区：[1]上海交通大学

出　　处：《机械工程材料》1991年第2期47-48,31,共3页Materials For Mechanical Engineering

摘　　要：用提拉技术,使用钨加热坩埚系统,成功地生长了优质刚玉单晶体。在炉中用一定比例的He+H_2混合气体,能有效地减少刚玉单晶体中的缺陷。此外,要精确控制有关的工艺参数。A tungsten heater-molybdenum crucible system has been successfully used to grow corundum single crystal with a high quality by the Czochralski technique. The use of a suitable proportion of He+H_2 mixed gases to grow corundum single crystal in furnace can eliminate the defects effectively. In addition, it is necessary to control the relative parameters accurately.

关 键 词：刚玉 单晶体 钨加热钼 坩埚 生长 

分 类 号：TQ164[化学工程—高温制品工业]