Superconductor technology: apparatus – material – process – High temperature devices – systems – apparatus – com- ponents,... – Superconducting wire – tape – cable – or fiber – per se
Patent
1997-05-15
1998-10-27
Sough, Hyung S.
Superconductor technology: apparatus, material, process
High temperature devices, systems, apparatus, com- ponents,...
Superconducting wire, tape, cable, or fiber, per se
1741251, 505430, 505884, B32B 900
Patent
active
058278010
ABSTRACT:
A clad superconductive wire or tape of an oxide superconductive material and a silver-copper alloy base containing 0.05-90 atomic % copper or a silver alloy. The silver-copper alloy base contains one or more elements selected from the group of Zr, Hf, Al, V, Nb and Ta in amounts of from 0.01-3 atomic %, or contains Au in amount of 0.01-10 atomic %. The silver alloy contains one or more elements selected from the group of Ti, Zr, Hf, V, Nb, Ta, Mg, Ca, Sr and Ba in amounts of from 0.01 to 3 atomic %, or one or more elements selected from the group of Au, Al, Ga, In and Sn in amounts of 0.05 to atomic %. The base material is filled with a Bi-containing oxide of Bi.sub.1 Pb.sub.u Sr.sub.x Ca.sub.y Cu.sub.z O.sub.w wherein u=0-0.3, x=0.8-1.2, y=0.2-1.2, and z=0.8-2.0, and processed to obtain a superconductive wire or tape having enhanced mechanical strength, superconductivity and plastic workability.
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Iwai et al., Formation of the High-T.sub.c Phase of Bi.sub.I-x Pb.sub.x Sr.sub.0.90 Ca.sub.1.10 Cu.sub.1.50 O.sub.y (0.ltoreq..times..ltoreq.0.05), Japanese Journal of Applied Physics, vol. 28, No. 9, Sep. 1989, pp. L1518-L1520.
Asano Toshihisa
Fukutomi Masao
Komori Kazunori
Maeda Hiroshi
Matsumoto Fumiaki
National Research Institute for Metals
Sough Hyung S.
Sumitomo Heavy Industrie's, Ltd.
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