公开(公告)号：JP2000203983A

公开(公告)日：2000-07-25

申请号：JP548499

申请日：1999-01-12

Applicant: INT SUPERCONDUCTIVITY TECH

Inventor： TOMIMOTO KOKICHI ,  TAJIMA SETSUKO

IPC: C30B15/00 ,  C30B29/22

Abstract: PROBLEM TO BE SOLVED: To provide a molten oxide producing technique by which the outflow of a melt from a crucible during the formation of the molten oxide as the raw material for producing a superconductor, etc., is conveniently and efficiently prevented. SOLUTION: A crucible 11 is placed on a support 1 so that >=2 single crystal polyhedrons such as single-crystal cubes, etc., are vertically stacked on one another without the edges of the adjacent polyhedrons coinciding, crossing or in contact with one another. An oxide 13 is heated and melted in the crucible to form a molten oxide, and the molten oxide is then crystallized to produce the oxide crystals of a superconductor, etc.