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专利名称:Method for producing oxide
superconductor, and oxide superconductor
发明人:Araki, Takeshi,Hayashi, Mariko,Fuke, Hiroyuki申请号:EP13182535.8申请日:20130830公开号:EP2704224A1公开日:20140305
专利附图:
摘要:Provided is a method for manufacturing an oxide superconductor, includingpreparing a coating solution containing alcohols including methanol as a solvent, thecoating solution dissolving fluorocarboxylic acid salts including trifluoroacetates, the
trifluoroacetates including a metal, barium and copper, the metal being selected fromyttrium and lanthanoid metals (provided that cerium, praseodymium, promethium, andruthenium are excluded); adding a substance of formula: CF2H-(CF2)n-COOH or HOCO-(CF2)m-COOH (wherein n and m represent positive integers) as a crack preventingchemical to the coating solution; forming a gel film on a substrate using the coatingsolution having the crack preventing chemical added thereto; forming a calcined film bycalcining the gel film at an oxygen partial pressure of 3% or less in a process that ismaintained at 200°C or higher for a total time of 7 hours or less; and forming an oxidesuperconductor film by firing and oxygen anneal of the calcined film.
申请人:Kabushiki Kaisha Toshiba
地址:1-1, Shibaura 1-Chome Minato-Ku Tokyo 105-8001 JP
国籍:JP
代理机构:Granleese, Rhian Jane
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