Method of forming crystallite-oriented superconducting ceramics by electrodeposition and thin film superconducting ceramic made thereby
AssigneeAllied-Signal Inc.
InventorsMacRae Maxfield, Ray H. Baughman, Zafar Igbal, Helmut Eckhardt
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Abstract
The invention relates to an improvement in a method of forming deposits of superconducting ceramics. Generally, such ceramics are formed by electrodepositing a mixture of metals of the type and in proportions sufficient to be oxidized into ceramic; oxidizing the electrodeposited mixture under conditions sufficient to result in a superconducting ceramic deposit; and orienting the crystallites in said superconducting ceramic deposit. Crystallite orientation may take place before, after or during the oxidation step.
Claims11
A method of forming crystallite-oriented deposits of superconducting ceramics comprising the steps of:
- (a) Electrodepositing a mixture of metals onto a substrate to form thereon a layer of metals of the type and in proportions sufficient to be oxidized into superconducting ceramic:
- (b) oxidizing said layer of metals by subjecting it at elevated temperature to an oxidizing atmosphere under conditions sufficient to result in a superconducting ceramic deposit:
- and
- (c) orienting the crystallites in said superconducting ceramic deposit,
- whereby there is obtained an increase in the critical current density of the superconducting ceramic.
Dependencies are inferred from the claim text.