Oxide superconductive wire and process for manufacturing the sam

Details Oxide superconductive wire and process for manufacturing the sam Oxide superconductive wire and process for manufacturing the sam

1993-12-21

1997-09-02

Sough, Hyung S.

Electricity: conductors and insulators

Conduits, cables or conductors

Superconductors

505230, 505430, 505884, B32B 900

Patent

active

056635281

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 amounts 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 5 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.

REFERENCES:
patent: 4866032 (1989-09-01), Fujimori et al.
patent: 4906609 (1990-03-01), Yamauchi et al.
patent: 5075285 (1991-12-01), Fukiger
patent: 5104849 (1992-04-01), Shiga et al.
patent: 5194420 (1993-03-01), Akihama
patent: 5384307 (1995-01-01), Lay
Yamada et al., "Pb Introduction to the High-Tc Superconductor Bi-Sr-Ca-Cu-O" Japanese Journal of Applied Physics vol. 27, No. 6 Jun. 1988, pp. L996-L998.
Iwai et al. "Formation of the High-Tc Phase of Bi.sub.1-x Pb.sub.x Sr.sub.0.90 Ca.sub.1.10 Cu.sub.1.50 O.sub.y (O.ltoreq..times..ltoreq.0.05)", Japanese Journal of Applied Physics, vol. 28, No. 9, Sep. 1989, pp. L1518-L1520.

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