Oxygen out-diffusion in partially melted YBa2Cu 3Oy- 0.325Ag superconductor at reduced oxygen partial pressure

Ju Hyung Kim, Haigun Lee

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2 Citations (Scopus)

Abstract

In this study, we examined the chemical diffusion coefficient of oxygen out-diffusion (D̃out) in partially melted YBa2Cu 3Oy (Y123)-Ag superconducting tape produced by the thermomechanical processing of the silverclad precursor (doped with 5 wt.% Ag) containing BaCuO2.5 at reduced oxygen partial pressure (P O2). The D̃out value of Y123-Ag (O7.0 to O6.2), obtained by using the thermogravimetric relaxation technique at 950°C and a PO2 of 0.28 kPa, was 1.0476 × 10 -7 cm2/s.

Original languageEnglish
Pages (from-to)673-678
Number of pages6
JournalMetals and Materials International
Volume14
Issue number6
DOIs
Publication statusPublished - 2008 Dec 1

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Keywords

  • Chemical diffusion coefficient of oxygen out-diffusion (D̃ )
  • Oxygen partial pressure (P)
  • Thermogravimetric analysis (TGA)
  • YBaCuO - Ag (Y123-Ag) superconducting tape

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys
  • Materials Chemistry

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