Environmental degradation properties of YBa2Cu3O7-δ and Y0.6Ca0.4Ba1.6La0.4Cu 3O7-δ thin film structures

Ji Ping Zhou, Rung Kuang Lo, Steven M. Savoy, Mark Arendt, Jeff Armstrong, Du Yu Yang, John Talvacchio, John T. McDevitt

Research output: Contribution to journalArticle

Abstract

Utilization of the high temperature superconductor, YBa2Cu3O7-δ, in commercial applications is becoming increasingly feasible. Before full advantage of this material can be taken, however, the lifetime, oxygen stability and processability of this ambient reactive superconductor must be improved. Corrosion resistance of YBa2Cu3O7-δ and a cation substituted compound, Y0.6Ca0.4Ba1.6La0.4Cu 3O7-δ, were studied and their lifetimes in aqueous environments were determined. Results indicate a dramatic enhancement in the stability against environmental degradation for the cation substituted phase. Important mechanistic factors responsible for the enhanced corrosion resistance of the substituted phase over the parent compound are discussed.

Original languageEnglish (US)
Pages (from-to)223-232
Number of pages10
JournalPhysica C: Superconductivity and its applications
Volume273
Issue number3-4
DOIs
StatePublished - Jan 1 1997

Keywords

  • Corrosion
  • Environmental degradation
  • High-T thin film
  • Superconductor lifetime measurement
  • Surface characterization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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