Method for oxidizing precursor compounds of superconducting oxid

Superconductor technology: apparatus – material – process – Processes of producing or treating high temperature... – Heating – annealing – or sintering

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423593, 505725, 505742, 505501, C01F 1102, C01G 302, H01L 3924

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053710665

ABSTRACT:
A precursor material is superoxidized to a superconducting oxide material in an atmosphere containing a reactive component that reacts with and removes hydroxide ion (OH.sup.-), replacing it with peroxide ion (O.sup.-). Preferred reactive components include H.sub.2 O.sub.2, N.sub.2 O, and I.sub.2. The reactive component reacts with and removes hydroxide ion from the precursor material, to reach a higher oxidation state in the superconducting oxide material than possible by oxidation in molecular oxygen. The use of such a reactive component permits both faster oxidation of the precursor material at conventional temperatures and the use of lower temperatures to achieve oxidation.

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