Preparation of superconducting YBa2Cu408 by the sol-gel method

S. Fujihara, H. Zhuang, T. Yoko, H. Kozuka, S. Sakka

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Superconducting YBa2Cu408 ceramics were synthesized by the sol-gel method using corresponding metal acetates as starting materials, water as solvent, and tartaric acid under 1 atm oxygen pressure. YBa2Cu408 powder was obtained as a single phase by heating the gel at 780 °C for 30 h in flowing oxygen. Tc was 80 K from magnetic susceptibility measurements. Pelletizing and sintering this powder revealed Tc (onset) of 87 K and Tc (end) of 78 K from resistance measurements. YBa2Cu408 pellets sintered at 780 °C for 30 h in O2 also consist of a single phase with Tc (onset) of 85 K and Tc (end) of 75 K.

Original languageEnglish
Pages (from-to)2355-2359
Number of pages5
JournalJournal of Materials Research
Volume7
Issue number9
DOIs
Publication statusPublished - 1992 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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