Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Process of making wire – tape – cable – coil – or fiber
Patent
1989-11-07
1994-04-19
Kunemund, Robert
Superconductor technology: apparatus, material, process
Processes of producing or treating high temperature...
Process of making wire, tape, cable, coil, or fiber
505704, 505729, 505730, 505739, 505740, 505741, 505742, 505452, 505470, C30B 1502
Patent
active
053045343
ABSTRACT:
An elongated, flexible superconductive wire or strip is fabricated by pulling it through and out of a melt of metal oxide material at a rate conducive to forming a crystalline coating of superconductive metal oxide material on an elongated, flexible substrate wire or strip. A coating of crystalline superconductive material, such as Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8, is annealed to effect conductive contact between adjacent crystalline structures in the coating material, which is then cooled to room temperature. The container for the melt can accommodate continuous passage of the substrate through the melt. Also, a second pass-through container can be used to simultaneously anneal and overcoat the superconductive coating with a hot metallic material, such as silver or silver alloy. A hollow, elongated tube casting method of forming an elongated, flexible superconductive wire includes drawing the melt by differential pressure into a heated tubular substrate.
REFERENCES:
patent: 3796553 (1974-03-01), Daunt
patent: 3815224 (1974-06-01), Pickus et al.
patent: 4336280 (1982-06-01), Moller
patent: 4596207 (1986-06-01), Witt et al.
patent: 4865681 (1989-09-01), Mattes
patent: 4908346 (1990-03-01), Strom et al.
patent: 4914081 (1990-04-01), Miller et al.
patent: 4939308 (1990-07-01), Maxfield et al.
Shimizu et al. "Tape Conductor Fabrication Processes For High Tc-BA.sub.2 YCu.sub.3 O.sub.7 ", Japanese Journal of Applied Physics, vol. 37, No. 3, Mar. 1988, pp. L414-L416.
Jin et al, "High Tc Superconductors-Composite Wire Fabrication", Applied Physics Letters, vol. 37 (3) Jul. 20, 1987, pp. 203-204.
Higashida et al. "Magnetic Measurements of Superconducting Glass-Ceramic Fine Rods . . . ", Applied Physics Letters vol. 55(15) Oct. 9, 1989 pp. 1578-1580.
High-critical-temperature superconductor made from glass, Nature, vol. 332, p. 575, Apr. 14, 1988.
Superconductivity-researchers use laser process to develop new type of fibers, "Stanford Observer", May 1988, pp. 1 and 12.
S. Jin, et al., Fabrication of dense Ba.sub.2 YCu.sub.3 O.sub.7-6 superconductor wire by molten oxide processing, Appl. Phys. Lett., vol. 51, No. 12, pp. 943-945, Sep. 21, 1987.
M. Mimura, et al., Improvement of the Critical Current Density in the Silver Sheathed Bi-Pb-Sr-Ca-Cu-O Superconducting Tape, Appl. Phys. Lett., vol. 54, No. 16, pp. 1582-1584, Apr. 17, 1989.
Kunemund Robert
Moser William R.
Richardson Kenneth L.
Smith Bradley W.
The United States of America as represented by the United States
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