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.
Claims18
A method of preparing a superconducting composite comprising a copper containing superconducting oxide phase and a noble metal phase wherein said noble metal is selected from the group consisting of silver, platinum, palladium, and gold, said method comprising the steps of combining the metallic elements of said superconducting oxide in substantially the stoichiometric proportions needed to form said superconducting oxide with said noble metal to form an alloy;
- and
- oxidizing said alloy under conditions sufficient to oxidize said metallic elements to said superconducting oxide without oxidizing said noble metal to form said composite.
Dependencies are inferred from the claim text.