Method for the preparation of thallium-containing superconducting materials by precipitation
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United States of America Patent
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Mar 19, 1991
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N/A
app pub date -
Aug 2, 1989
filing date -
Aug 2, 1989
priority date (Note) -
Expired
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Abstract
This invention provides improved methods for the preparation of precursor powders that are used in the preparation of superconducting ceramic materials that contain thallium. A first solution that contains the hydrogen peroxide and metal cations, other than thallium, that will be part of the ceramic is quickly mixed with a second solution that contains precipitating anions and thallium (I) to form a precipitate which is dried to yield precursor powders. The precursor powders are calcined an sintered to produce superconducting materials that contain thallium.
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