Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1990-02-28
1992-09-29
Lieberman, Paul
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
423604, 423617, 423635, 505739, 505782, C01F 1102, C01G 302, C01G 2900, C04B 3560
Patent
active
051514079
ABSTRACT:
Bulk form of superconducting materials are produced by pouring a melt a O.sub.2 -containing superconducting material into a heated mold, cooling the mold until solidification begins, removing the cast object from the mold, gradually cooling the cast object to prevent the development of thermal stresses, and then annealing the cast, cooled object to restore O.sub.2 to near equilibrium levels. The bulk form produced according to the present invention may be used as a sputtering target in the production of wires, or as a bulk form semiconductor.
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Baughman, "Melt Processing Ceramic YBa.sub.2 Cu.sub.3 O.sub.x ", MR5 Ext. st.: High-Temp Super. II, Apr. 5-9, 1988, pp. 341-344.
Bock "Preparation of Single Phase 2212 Bismuth Strontium Calcium . . . ", Solid State Comm vol. 72(5), 1989, pp. 453-458.
A. D. Berry et al., "Formation of High T Superconducting Films by Oganometallic Chemical Vapor Deposition", Extended abstract from a poster session during the Apr. 5 through 9, 1988 syposium on High Temperature Superconductors II, Reno, Nev., pp. 141-143.
Jin et al., "Superconductor Wire by Molten Oxide Processing", Appl. Phys. Lett 51(12, 21 Sep. 1987, pp. 943-945.
Khurana, "Super Collider Magnet-Program Pushes Toward Prototype", Physics Today, Apr. 1988, pp. 17-85.
Das et al., "Casting High-T.sub.c Superconducting BiSCCO", printed in Journal os Superconducting, vol. 2, No. 2, 1989, pp. 253-263.
Provenzano et al., "Preliminary Studies for the Development of Superconducting Composite Wires", printed in IEEE Transactions on Magnetics, vol. 25, No. 2, Mar. 1989, pp. 2320-2322.
Henshaw William F.
Imam M. A.
Provenzano Virgil
Sadananda Kuntimadi
Singh Anand K.
Boyd John
Edelberg Barry A.
Lieberman Paul
McDonnell Thomas E.
The United States of America as represented by the Secretary of
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