Fabrication and Superconducting Properties of AgCu Alloy-Sheathed BiSrCaCuO Oxide Tapes
Fabrication and Superconducting Properties of AgCu Alloy-Sheathed BiSrCaCuO Oxide Tapes
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AgCu合金护套BiSrCaCuO氧化物带的制备及其超导性能
DOI：
10.1143/jjap.31.l235
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发表时间：
1992
影响因子：
1.5
通讯作者：
Hiroshi Maeda Hiroshi Maeda
中科院分区：
文献类型：
--
作者：
Yoshiaki Tanaka;T. Asano;T. Yanagiya;M. Fukutomi;Kazunori Komori Kazunori Komori;Hiroshi Maeda Hiroshi Maeda
成功地制备了Ag-Cu合金包覆BiSrCaCuO带材。对于（Bi，Pb）2Sr2Ca2Cu3Ox相的Ag-13 at % Cu合金包覆带材，获得了高于100 K的临界温度（Tc起始）。当Cu含量小于25at%时，Bi_2Sr_2Ca_1Cu_2O_x相的Ag-Cu合金带材的Tc为1.80 K。在4.2K和12T下，Ag-10at%Cu合金包覆的Bi_2Sr_2Ca_1Cu_2O_x相带材的临界电流密度达到3.5 × 104A/cm~2。可以提高烧结带的机械强度，以及改善线和带的可加工性。
Ag-Cu alloy-sheathed BiSrCaCuO tapes have been successfully fabricated. Critical temperature higher than 100 K (Tc-onset) was obtained for the Ag-13 at%Cu alloy-sheathed tape of the (Bi, Pb)2Sr2Ca2Cu3Ox phase. Tc′s of ∼80 K were obtained for the Ag-Cu alloy tapes of the Bi2Sr2Ca1Cu2Ox phase with Cu content less than ∼25 at%. Critical current density reached 3.5×104 A/cm2 at 4.2 K and 12 T for the Ag-10 at%Cu alloy-sheathed Bi2Sr2Ca1Cu2Ox-phase tapes. Mechanical strength of the sintered tapes could be increased, as well as improvement in workability of the wires and tapes.