Appeal No. 1999-2595
Application No. 08/927,106
APPENDIX
1. A ceramic superconductor, comprising:
(a) a nickel substrate;
(b) a yttrium-based copper oxide superconductor; and,
(c) between the nickel substrate and the yttrium-
based copper oxide superconductor, a diffusion barrier made
of neodymium gallate, wherein the neodymium gallate has
been presintered on the nickel substrate at temperatures
sufficient for nickel from the nickel substrate to diffuse
into the neodymium gallate.
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