Production of high temperature superconducting materials

Details Production of high temperature superconducting materials Production of high temperature superconducting materials

1987-07-23

1989-08-29

Morgenstern, Norman

Superconductor technology: apparatus, material, process

High temperature , per se

Having tc greater than or equal to 150 k

164463, 427 62, C23C 806, B22D 1100, B05D 512

Patent

active

048617512

ABSTRACT:
A process is provided for the production of superconducting wires, ribbons, tapes, fibers and the like including the steps of forming an amorphous metal alloy containing at least one of scandium, yttrium or the rare earths; copper; and at least one alkaline earth as an elongated body, and reacting the amorphous metal alloy with oxygen at a temperature below the crystallization temperature of the alloy to form a sheath of superconducting oxide exterior to a core of amorphous metal alloy. Included in the invention are the elongated bodies thus produced and superconductor devices fabricated from said bodies.

REFERENCES:
patent: 4221257 (1980-09-01), Narasimhan
patent: 4585696 (1986-04-01), Dustmann et al.
Matsuzaki et al., Jap. J. of App Phys Let., vol. 26, No. 4, Apr. 1987, pp. L334-L336.
Gruen et al., J. Electrochemical Soc., vol. 134, No. 6, Jun., 1987, pp. 1588-1589.
Wilson, M. N., "Practical Superconducting Materials", Superconductor Materials Science, Foner & Schwartz ed., Plenum Press (1981), pp. 63-131.
ER-RAKHO et al., "A Series of Oxygen Defect Perovskites Containing Cu.sup.II and Cu.sup.III ", Journal of Solid State Chemistry 37 (1981), pp. 151-156.
Millman, H., "Fabrication Technology of Superconducting Material", Superconductor Materials Science, Foner & Schwartz ed., Plenum Press (1981), pp. 275-388.
Tenhover, M., "High Critical Currents Obtained by Heat-Treating Rapidly Quenched HF-ZR-V Metallic Glasses", IEEE Transaction on Magnetics, vol. Mag 17, No. 1, Jan. 1981, pp. 1021-1024.
Wessel et al., "Scientists at Mit Report Fabricating Superconductors Using Metal Alloys", Wall Street Journal, Jun. 11, 1987, (page not known).
Robinson, A. L., "A New Route to Oxide Superconductors", Science, vol. 236, (Jun. 19, 1987), p. 1526.
Japan Ceramic News, vol. 1, No. 6, p. 3, Jun. 10, 1987 (Best copy).
Murphy, D. W. et al., "New Superconducting Cuprate Perovskites", Physical Review Letters, vol. 58, No. 18, May 4, 1987, pp. 1888-1890.
Kitazawa, K. et al., "Superconductivity at 95K in the New Yb-Ba-Cu Oxide System", Japanese Journal of Applied Physics, vol. 26, No. 4, Apr., 1987, pp. L339-L341.
Hikami, S. et al., "High Tc Magnetic Superconductor: Ho-Ba-Cu Oxide", Japanese Journal of Applied Physics, vol. 26, No. 4, Apr. 1987, pp. L347-L348.
Hosoya, S. et al., (I) "High-Tc Superconductivity in New Oxide Systems", Japanese Journal of Applied Physics, vol. 26, No. 4, Apr. 1987, pp. L325-L326.
Hosoya, S. et al., (II) "High-Tc Superconductivity in New Oxide Systems II", Japanese Journal of Applied Physics, vol. 26, No. 4, Apr. 1987, pp. L456-L457.
Hor, P. H. et al., "Superconductivity Above 90K in the Square Planar Compound System A Ba.sub.2 Cu.sub.3 O.sub.6 +x . . . ", Physical Review Letters, vol. 58, No. 18, May 4, 1987, pp. 1891-1894.
Capone, D. W. et al., "Upper Critical Fields and High Superconducting Transition Temperatures . . . ", Applied Physical Letters, vol. 50, No. 9, Mar. 2, 1987, pp. 543-544.
Aeppli, G. et al., "Magnetic Penetration Depth and Flux-Pinning Effects in High-T.sub.c Superconductor La.sub.1.85 Sr.sub.0.15 CuO.sub.4 ", Physical Review B, vol. 35, No. 13, May 1, 1987, pp. 7129-7132.
Chu, C. W. et al., "Superconductivity at 52.52K in the La-Ba-Cu-O System", Science, vol. 235, Jan. 30, 1987, pp. 567-569.
Bednorz, J. G. et al., "Superconductivity in Alkaline Earth-Substituted LA.sub.2 CuO.sub.x-y ", Science, vol. 236, Apr. 3, 1987, pp. 73-75.
Grant, P. M. et al., "Superconductivity Above 90K in the Compound YBa.sub.2 Cu.sub.3 O.sub.x. . . ", Physical Review B, vol. 35, No. 13, May 1, 1987, pp. 7242-7244.
Gubser, D. U., "Superconducting Phase Transitions in the LA-M-Cu-O Layered Perovskite System . . . ", Physical Review B, vol. 35, No. 10, Apr. 1, 1987, pp. 5350-5352.
Hirabayash, M. et al., "Structure and Superconductivity in a New Type of Oxygen Deficient Perovskites Y.sub.1 BA.sub.2 Cu.sub.3 O.sub.7 ", Japanese Journal of Applied Physics, vol. 26, No. 4, Apr. 1987, pp. L454-L455.
Tarascon, J. M. et al., "Superconductivity at 40K in the O-Defect Perovskites LA.sub.2-x SR.sub.x CuO.sub.4-y ", Science, vol. 235, Mar. 13, 1987, pp. 1373-1376.

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