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Reactive liquid phase sintering of solution-derived YBa2Cu3O7−x superconducting thin films: Part I. Ambient and precursor effects on BaO–CuO liquid phase formation

Published online by Cambridge University Press:  03 March 2011

Peir-Yung Chu  and
Relva C. Buchanan
Peir-Yung Chu
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801
Relva C. Buchanan
Affiliation:
Department of Materials Science and Engineering, University of Illinois at Urbana–Champaign, Urbana, Illinois 61801
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Abstract

Processing atmosphere and precursor effects on liquid phase formation were investigated in the BaO–CuO thin film system. Liquid phase was observed at a significantly lower temperature (∼620 °C) under N2 atmosphere with carboxylate solution precursors. In the processing of the YBCO oxide superconductors, formation of the liquid phase facilitated the decomposition of BaCO3 and crystallization of the YBCO grains. Larger grains and greater (00l) preferred orientation were also observed in the YBCO films prepared with the presence of the liquid phase.

Type
Articles
Information
Journal of Materials Research , Volume 8 , Issue 9 , September 1993 , pp. 2134 - 2142
Copyright
Copyright © Materials Research Society 1993

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