Preparation of Ag-doped NdBa2Cu3O7-δ superconductors by a sol-gel method

Gohkì Murakami, Yoshìo Masuda, Jisun Jin, Keiichi Tanabe, Shinobu Fujihara, Toshio Kimura

研究成果: Article査読

2 被引用数 (Scopus)

抄録

Ag-doped NdBa2Cu3O7-δ superconducting ceramics were prepared by a sol-gel method. Ag was distributed uniformly in the sintered samples. The incongruent melting temperature of the NdBa2Cu3O7-δ samples prepared by our sol-gel method was lower than that of the samples prepared by the conventional powder method. The incongruent melting temperature was further decreased by doping with Ag. The authors consider that the incongruent melting is induced by reaction between NdBa2Cu3O7-δ and Ag. The superconducting transition width ΔT(ΔT = Tc(onset) - Tc(end)) was decreased by doping with Ag. The electrical resistivity of a 10 mass% Ag-doped sample dropped sharply from 93 K (Tc(onset)) and showed zero resistivity at 86 K (Tc(end)).

本文言語English
ページ(範囲)377-380
ページ数4
ジャーナルJournal of the Ceramic Society of Japan
106
4
DOI
出版ステータスPublished - 1998 4月

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 化学 (全般)
  • 凝縮系物理学
  • 材料化学

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