Nickel-based substrate for ceramic superconductor

Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k

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Details

505701, 505702, 505703, 505704, 4284111, 428457, 428688, 428704, 428 341, 428901, 428930, B32B 900

Patent

active

051643600

ABSTRACT:
A ceramic superconductor comprises a substantially nonmagnetic preannealed nickel-based alloy substrate which supports a ceramic superconductor. The substrate may include aluminum to strengthen the substrate, make it less magnetic and enhance its chemical compatibility with the ceramic superconductor. The ceramic is formed on the substrate by sintering superconductor grains at temperatures above 1000.degree. C. to enhance densification of the ceramic.

REFERENCES:
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Appl. Phys. Lett., High T.sub.c Superconductivity in Y-Ba-Cu-O Screen Printed Films, vol. 53, Sep. 1988, pp. 1110-1112.
Appl. Phys. Lett., Interdiffusion and Interfacial Reaction Between a Ba.sub.2 Cu.sub.3 O.sub.x Thin Film and Substrates, vol. 53, Oct. 1988, pp. 1437-1439.
Appl. Phys. Lett., Lanthanum Gallate Substrates for Epitaxial High-Aperture Superconducting Thin Films, vol. 53, Nov. 1988, pp. 1874-1876.
D. W. Murphy et al., Science, Processing Techniques for the 93 K Superconductor Ba.sub.2 YCu.sub.3 O.sub.7, vol. 241, Aug. 1988, pp. 922-930.
Takayuki Komatsu et al., On the New Substrate Materials for High-T.sub.c Superconducting Ba-Y-Cu-O Thin Films.

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