| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve workability by preventing the damage and inclination of an inside crucible; to prevent the occurrence of a change into SiC, thickness reduction, etc., of an outside crucible; and to prevent the lowering of product quality by maintaining gas screening properties. <P>SOLUTION: In a crucible 1 having an inside crucible 2 and an outside crucible 3, a plurality of sheets 4 each made of expanded graphite are laminated and arranged in between both crucibles. <P>COPYRIGHT: (C)2009,JPO&INPIT |
