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US 5,204,318 AGranted
Preparation of superconducting oxides and oxide-metal composites
AssigneeMassachusetts Institute of Technology
InventorsGregory J. Yurek, John B. VanderSande
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Abstract
A method of preparing a superconducting oxide by combining the metallic elements of the oxide to form an alloy, followed by oxidation of the alloy to form the oxide. Superconducting oxide-metal composites are prepared in which a noble metal phase intimately mixed with the oxide phase results in improved mechanical properties. The superconducting oxides and oxide-metal composites are provided in a variety of useful forms.
Claims1
A method of preparing a superconducting ceramic oxide comprising the steps of:
- 1) combining metallic element ABC in a substantially stoichiometric proportion needed to form said superconducting oxide to form an alloy wherein A is La or Y, B is Ba or Sr and C is Cu.
- 2) shaping said alloy to a predetermined geometry.
- 3) oxidizing said shaped alloy to form said superconducting oxide.
Dependencies are inferred from the claim text.