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Precursor powder of a superconductive oxide based on copper oxide, process for its manufacture and its use for the preparation of a superconductive oxide
Precursor powder of a superconductive oxide based on copper oxide, process for its manufacture and its use for the preparation of a superconductive oxide
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机译:基于氧化铜的超导氧化物的前体粉末,其制备方法及其在制备超导氧化物中的用途
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摘要
The invention relates to a precursor powder of a superconductive oxide based on copper oxide, to a process for its manufacture and to its use for the preparation of a superconductive oxide. The precursor powder comprises: at least one copper compound chosen from among copper hydroxide, copper oxide and copper hydroxynitrates; at least one compound of yttrium and/or of one or more rare earth elements, chosen from among the nitrates, hydroxide and hydroxynitrates of yttrium and of rare earths; or a bismuth compound consisting of bismuth oxide; and at least one alkaline earth metal nitrate. It can be prepared by spray drying of a slurry containing a precipitate or coprecipitate of copper and, in solution, the other elements of the superconductive oxide. IMAGE
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