METHOD OF RECOVERING REACTION VESSEL FOR GROWING SINGLE CRYSTAL, AND METHOD OF GROWING SINGLE CRYSTAL

摘要

PROBLEM TO BE SOLVED: To provide a method enabling to grow a transparent single crystal when growing a single crystal next time, the method including recovering the reaction vessel, after growing a single crystal in a state of housing molten liquid containing sodium in a reaction vessel comprising alumina, yttria, or yttrium aluminum garnet by the flux method. SOLUTION: A single crystal is grown in a state of housing molten liquid containing sodium in a reaction vessel comprising alumina, yttria, or yttrium aluminum garnet by the flux method. The reaction vessel is made reusable by ultrasonically cleaning the reaction vessel thereafter, and then heating the reaction vessel in an oxidizing atmosphere at 1,300-1,600°C during 5-20 hours. COPYRIGHT: (C)2011,JPO&INPIT