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Elongate bismuth system superconductor having aligned 2212 phase
Elongate bismuth system superconductor having aligned 2212 phase
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机译:具有对齐的2212相的长形铋系超导体
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摘要
This invention is related to the preparation of an elongate conductor having a silver sheath, and a core of an aligned polycrystalline oxide superconductor having the approximate formula Bi. sub.2-x Pb.sub.x Sr.sub. 2-a L.sub.a+b Ca.sub.1-b Cu.sub.2 O.sub.y where y is from 7.5 to 8.5, and L is a lanthanide. A powder mixture is formed comprised of a first portion of a superconducting bismuth oxide compound that can be reaction- sintered to form the core oxide superconductor, and a second portion of oxides suitable for reacting with the first portion to form the core oxide superconductor. An elongate body is formed having a silver sheath, and a core of the mixture. The body is deformed to align the first portion, and heated to reaction-sinter the first and second portions to form the core oxide superconductor.
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机译:本发明涉及具有银护套的细长导体和具有近似式Bi的取向多晶氧化物超导体的芯的制备。 sub.2-x Pb.sub.x Sr.sub。 2-a L a + b Ca 1-b Cu 2 O y,其中y为7.5至8.5,且L为镧系元素。形成粉末混合物,该粉末混合物包括第一部分的超导氧化铋化合物,该化合物可以进行反应烧结以形成芯氧化物超导体,以及第二部分氧化物,其适于与第一部分反应以形成芯氧化物超导体。形成具有银皮和混合物芯的细长体。主体变形以对准第一部分,并被加热以使第一和第二部分反应烧结以形成芯氧化物超导体。
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