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Chemical modification of precursor solution for long length YBCO coated conductor fabrication

Title
Chemical modification of precursor solution for long length YBCO coated conductor fabrication
Authors
Yoo J.Kim Y.-K.Chung K.Ko J.Hong G.-W.Lee H.-G.Kim J.-H.Chung H.Wang X.L.Dou S.X.
Ewha Authors
김진흥
SCOPUS Author ID
김진흥scopus
Issue Date
2006
Journal Title
Journal of Physics: Conference Series
ISSN
1742-6588JCR Link
Citation
vol. 43, no. 1, pp. 211 - 214
Indexed
SCOPUS scopus
Abstract
Long length MOD processing of YBCO conductor requires high performance precursor solution without degradation during the process. In this study, effect of chemical modification of precursor solution on MOD processing was investigated to meet the requirement. Highly stable YBCO precursor solution was synthesized with PVP (polyvinylpyrrolidone) and crack-free thick precursor film was successfully fabricated. However, annealed YBCO film shows porous microstructures originated from large HF gas generation from thick films and residual carbon from additives. Reduction of fluorine content is required to densify microstructures. In order to reduce fluorine content, F-free Cu-precursor solution was synthesized. YBCO film with Jc0.8MA/cm 2 was grown on buffered RABiTS tape. Annealed YBCO film still contains pores and further reduction of pores is required to improve critical current (Ic) © 2006 IOP Publishing Ltd.
DOI
10.1088/1742-6596/43/1/053
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
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