Melting and solidification of Y1-xYbxBa2Cu3Oy: influences of Yb doping and oxygen partial pressure

Yuxiang Zhou, Tong B. Tang

Research output: Contribution to journalConference article

3 Scopus citations

Abstract

A comparative study was undertaken into the calcination conditions for the solid-state synthesis of pure Y1-xYbxBa2Cu3O7-δ (x=0, 0.25, 0.5, 0.75, 1.0), the starting materials being Y2O3, Yb2O3, BaCO3 and CuO. It was found that the calcination time should go up and the sintering temperature should lower, when the average rare earth ionic radius decreases. Moreover, the melting and the solidification temperatures of Y1-xYbxBa2Cu3Oy rise with decreasing Yb doping and increasing oxygen partial pressure, but depend only weakly on the particle size distribution. These deductions will be important to the fabrication of large-grain (Y, Yb)BaCuO.

Original languageEnglish (US)
Pages (from-to)2475-2476
Number of pages2
JournalPhysica C: Superconductivity and its Applications
Volume341-348 (IV)
DOIs
StatePublished - Nov 2000
EventInternational Conference on Materials and Mechanisms of Superconductivity High Temperature Superconductors VI - Houston, TX, USA
Duration: Feb 20 2000Feb 25 2000

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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