| 简介 |
PROBLEM TO BE SOLVED : To obtain a tape shape superconductor having high Jc and Ic values by suppressing the causes of the occurrence of cracks and the falling of the electrical combination at a crystal grain boundary.
SOLUTION : When an Re-based (123) superconductor is manufactured on a substrate by an MOD method, the thick tape shape superconductor having a superconducting property of Jc=3.20 MA/cm2 and Ic=525 A/cm (X=1.5) can be manufactured by using a raw material solution having a Ba molar ratio range of X<2 (favorably 1.0≤X≤1.8 and more favorably 1.3≤X≤1.7) when the molar ratio of Re, Ba and Cu is denoted as Re : Ba : Cu=1 : X : 3.
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