| 摘要 |
PURPOSE:To manufacture a Bi superconducting wire excellent in Jc characteristic. CONSTITUTION:The raw material powder set with the metal element composition ratios of Bi:Pb:Sr:Ca:Cu to a:b:c:d:e is calcined, it is filled into a silver sheath pipe, plasticity processing is applied to it to obtain a raw wire, the raw wire is applied with heat treatment, then plasticity processing and heat treatment are applied to it more than once, where (a), (b), (c), (d), and (e) satisfy the following: 1.76<=a<=1.84, 0.36<=b<=0.44, 1.76<=c<=1.84, 2.16<=d<=2.24, and e=3.00. A Bi superconducting wire having a high Jc value is manufactured. |
