Superconductive ceramic composite material

Details Superconductive ceramic composite material Superconductive ceramic composite material

1995-09-21

1996-08-20

Lieberman, Paul

Superconductor technology: apparatus, material, process

Processes of producing or treating high temperature...

Heating, annealing, or sintering

505300, 505725, 505780, 505781, 252521, C04B 35505, C04B 3565

Patent

active

055479243

ABSTRACT:
A superconductive ceramic composite material with high strength and capable of plastic deformation is prepared by mixing and sintering a superconductive powder represented by (RE.sub.x AE.sub.1-x).sub.1-y Cu.sub.y O.sub.z (RE represents Y or a rare-earth element having an atomic number of 57-71, or a combination of at least two of these elements, AE is at least one of alkaline earth elements Ca, Sr and Ba, x is 0.13-0.67, y is 0.25-0.67, and z is 1.08-1.17) and a metal powder M (M represents at least one of noble metals Rh, Pd, Ag, Ir, Pt and Au), in a defined ratio. The deformation (e.g., rolling) is followed by reheat-treatment (resintering). The powder mixture can be enclosed in a metallic capsule or made into a clad sheet by interposing the powder within two metallic sheets, and deformed (drawn or press formed into a desired shape) followed by sintering. The composite material may contain a superconductive network of such grains.

REFERENCES:
patent: 3951870 (1976-04-01), Erewamy et al.
patent: 4762754 (1988-08-01), Nellis et al.
patent: 4826808 (1989-05-01), Yurek et al.
patent: 4892861 (1990-01-01), Ray
patent: 5145836 (1992-09-01), Chen et al.
McCallum et al "Problems in the Production of YBa.sub.2 Cu.sub.3 O.sub.x Superconding Wire" Advanced Ceramic Materials, vol. 2, No. 3B, Special Issue. Jul. 1987 pp. 388-400.
"Science and Technology", The Economist pp. 87-88 Feb. 21, 1987.
"Breakthrough Seen in Magnet Research"--New York Times--Wed. Mar. 18, 1987.
Superconducting Properties of YBa.sub.8 Cu.sub.3 O.sub.7-.delta. Doped with Various Metals and Oxides Sherwood et al., Symposia Proceedings of the Matls. Res. Society vol. 99, Apr. 1988.
"Superconducting Properties of Y-Ba-Cu-Pt-O" Korachev et al. Int'n'l J. of Mod. Phys. B., vol. 1 No. 2 1987 pp. 223-229.
"Fabrication Of Dense Ba.sub.2 YCu.sub.3 O.sub.7-.delta. Superconductor Wire By Molten Oxide Processing" by S. Jin et al, Appl. Phys. Lett., vol. 51, No. 12, pp. 943-945, Sep. 21, 1987.
"High T.sub.c Superconductors--Composite Wire Fabrication" by S. Jin et al, Appl. Phys. Lett., vol. 51, No. 3, pp. 203-204, Jul. 20, 1987.

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