Enhancement for synthesis of Bi-Pb-Sr-Ca-Cu-O superconductor by the spray drying and subsequent calcination with rapid heating

The synthetic processing of a Bi-Pb-Sr-Ca-Cu-O superconductor by the spray drying and subsequent calcination was examined. The nitrate solution of the superconductor was spray dried and then promptly, the spray-dried powder was decomposed at the temperature in the stable range of the high T c phase...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 1991-05, Vol.30 (5A), p.L806-L808
Main Authors: AWANO, M, KANI, K, TAKAO, Y, TAKAGI, H
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
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Summary:The synthetic processing of a Bi-Pb-Sr-Ca-Cu-O superconductor by the spray drying and subsequent calcination was examined. The nitrate solution of the superconductor was spray dried and then promptly, the spray-dried powder was decomposed at the temperature in the stable range of the high T c phase for relatively short time (1-2 hours). Other homogeneous starting materials could not react to the high T c phase in such a short time. The results suggest that the optimum condition at which to synthesize the high T c phase is not only homogeneity, but also the condition of the precursor and reaction method.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.30.L806