Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1989-05-24
1991-05-14
Morgenstern, Norman
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505782, 505725, 427 62, 427 73, B05D 512
Patent
active
050156217
ABSTRACT:
A superconducting ceramic powder of Bi/Sr/Ca/Cu/O system are formed in a film and the c-axes are uniformly aligned with the normal of the film. The alignment of the axes is accomplished by dripping ethylalcohol containing the ceramic powder into ethyl alcohol contained in a reservoir. The ceramic powder is settled on a substrate arranged in the reservoir in film form. After removing ethylalcohol, the ceramic film is fired.
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patent: 4540599 (1985-09-01), Rabatin
patent: 4746588 (1988-05-01), Ditty et al.
Hewat et al., "Superstructure of the superconductor Bi.sub.2 Sr.sub.2 CaCu.sub.2 O.sub.8 by High-Resolution Electron Microscopy", Nature, vol. 333, May 1988, pp. 53-54.
Hazen et al., "Superconductivity in the High-T.sub.c Bi-Ca-Sr-Cu-O System: Phase Identification", Phys. Rev. Lett., vol. 60 (12), Mar. 1988, pp. 1174-1177.
Hashimoto et al., "Superconductivity and Substrate Interaction of Screen-Printed Bi-Sr-Ca-Cu-O Films", Jpn. J. Appl. Phys. 27(3), Mar. 1988, pp. L384-L386.
Rice et al., "Preparation of Superconducting Thin Films of Calcium Strontium Bismuth Copper Oxides by Coevaporation", Appl. Phys. Lett. 52(21), May 23, 1988, pp. 1828-1830.
Steinbeck et al., "Preparation of Superconducting Bi-Sr-Ca-Cu-O Thin Films by Sequential Electron Beam Evaporation and Oxygen Annealing", Appl. Phys. Lett., vol. 54(5), Jan. 1989, pp. 466-468.
King Roy V.
Morgenstern Norman
Semiconductor Energy Laboratory Co,. Ltd.
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