Bi, alkaline earth, Cu extruded oxide superconductive material h

Details Bi, alkaline earth, Cu extruded oxide superconductive material h Bi, alkaline earth, Cu extruded oxide superconductive material h

1990-08-14

1992-01-07

Lieberman, Paul

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

505782, 505739, 252518, 252521, H01L 3912, C01F 1102, C01G 2900

Patent

active

050792156

ABSTRACT:
An oxide superconductive material comprising constituent elements mainly composed of ABiCuO in which A comprises at least one element of alkaline earth metals, and having a C-plane orientation, and a method of orienting such superconductive materials by hot extrusion from a rectangular nozzle.

REFERENCES:
patent: 4942151 (1990-07-01), Capone et al.
Akimitsu, J. et al.: "Superconductivity in the Bi-Sr-Cu-O System", Jap. J. Appl. Phys., vol. 26, No. 12, Dec. 1987, pp. 12080-12081.
Dagani; R.: "New Class of Superconductors Discovered", C&EN, vol. 66, No. 5, Feb. 1, 1988, p. 5.
Dinger, T. R. et al.: "Direct Obersvation of Electronic Anisotropy in Single Crystal YiBa.sub.2 Cu.sub.3 O.sub.7-x ", Phys. Rev. Lett., 58, No. 25, Jun. 22, 1987, pp. 2687-2690.
Enomoto, Y. et al.: "Largely Anisotropic Superconducting . . . Thin Film", Jap. J. Appl. Phys., vol. 26, No. 7, Jul. 1987, pp. 4248-4250.
Michel, C. et al.: "Superconductivity in the Bi-Sr-Cu-O System", Z. Phys. B.-Condensed Matter, 68 (1987) pp. 421-423.
Nakao, M. et al.: "Magnetron Sputtering of Bi-Ca-Sr-Cu-O . . . Films with superconductivity above 80K", Jap. J. Appl. Phys., 27(3), Mar. 1988, pp. L378-L380.
Maeda et al.; "A New High-Tc Oxide Superconductor without a Rare Earth Element," Jap. Jrnl. App. Phys., vol. 27, No. 2, Feb. 1988, L209-L210.
Subramanian et al., "A New High-Temperature Superconductor Bi.sub.2 Sr.sub.3-x CaxCu.sub.2 O.sub.8+y ", Science, vol. 239, Feb. 26, 1988, 1015-1017.

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