Zone-melting processing of thick high-Tcsuperconducting films
- Miaoulis, Ioannis N.
- Lipman, J.
- Flodman, D. A.
- Wong, Peter Y.
- Wolfson, M. W.
- Barrett, J.
- Nelson, A.
DOIAbstract
Thick superconducting YBa2Cu3O7- delta and SrBiCaCu2Ox films on alumina substrates were prepared using a screen printing method. The films were post-processed by a zone-melting technique which caused limited grain growth in the Y-Ba-Cu-O films but greatly enhanced the texture of the Sr-Bi-Ca-Cu-O films. The process eliminated the gaps between the film\u27s grains and significantly reduced the porosity. The films did not melt incongruently, and maintained their superconducting properties after processing. © 1989 IOP Publishing Ltd
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