RAPID SOLIDIFICATION OF OXIDE SUPERCONDUCTORS IN THE Y‐Ba‐Cu‐O SYSTEM

J. McKittrick, L. ‐Q Chen, S. Sasayama, M. E. McHenry, G. Kalonji, R. C. O'Handley

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Abstract

Three compositions which lie along the YBa2Cu3O9‐x‐BaCuO2 tie‐line were melted and solidified with different cooling rates. Rapid solidification of all three compositions results in new, previously unreported phases. Slower solidification rates yield multi‐phase materials. Annealing all three compositions in O2 transforms them to the YBa2Cu3O9‐x orthorhombic phase plus varying amounts of BaCuO2. The annealed materials all show superconductivity with an average Tc = 88.5 K as measured through the resistivity, which is in good agreement with measurements on a SQUID magnetometer. 1987 The American Ceramic Society

Original languageEnglish (US)
Pages (from-to)353-363
Number of pages11
JournalAdvanced Ceramic Materials
Volume2
Issue number3 B
DOIs
StatePublished - Jul 1987

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All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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