Liquid phase sintering and microstructure development of Ag-clad Tl-1223 superconductor

M. R. Hagen, D. S. Kupperman, K. C. Goretta, M. T. Lanagan

Research output: Contribution to journalArticle

10 Scopus citations

Abstract

The phase evolution and electrical properties of Tl-1223 tapes were explored near the incongruent melt temperature. Liquid phase evolution was monitored as a function of time and temperature by an acoustic velocity monitor. The phase development kinetics for Tl-based superconductors are more than one order of magnitude faster than the kinetics of Bi-based superconductors. Three separate powder mixtures (Tl2O3 + Ba2Ca2Cu3O7, TlBa2CaCu2Ox + CaCuO2, and TlBa2Ca2Cu3Oy) were used in powder-in-tube processing. Oxygen partial pressure had a significant effect on melt behaviour and microstructure development.

Original languageEnglish (US)
Pages (from-to)898-904
Number of pages7
JournalSuperconductor Science and Technology
Volume9
Issue number10
DOIs
StatePublished - Oct 1 1996

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Metals and Alloys
  • Electrical and Electronic Engineering
  • Materials Chemistry

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