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NEEDLE-LIKE CRYSTAL OF OXIDE SUPERCONDUCTOR AND METHOD OF PRODUCING THE SAME 发明申请

2023-07-03 3570 440K 0

专利信息

申请日期 2025-07-12 申请号 JP2004231319
公开(公告)号 JP2006045028A 公开(公告)日 2006-02-16
公开国别 JP 申请人省市代码 全国
申请人 NAT INST FOR MATERIALS SCIENCE
简介 PROBLEM TO BE SOLVED : To provide a high quality R1Ba2Cu3O7 needle-like crystal which is free from Ca and contains extremely few defects; and a simple method of producing the same. SOLUTION : The needle-like crystal of an oxide superconductor having a R1Ba2Cu3O7 crystal structure is produced by heat treating a precursor comprising a powder-compacted formed body having an atomic ratio composition expressed by general formula (1) : R1.1-2.4Ba2.1-3.4Cu3X0.2-0.8Ox (wherein, R is one kind of rare earth element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu; and X is one kind of element selected from Sb, Te, Se, As, S and P) in a temperature range of not lower than 900°C and lower than a temperature at which the precursor is completely melted in an atmosphere containing 5-100% oxygen. COPYRIGHT : (C)2006, JPO&NCIPI


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