ゾル-ゲル法によるNdBa_2Cu_3O_<7-δ>超電導体の合成 Preparation of NdBa_2Cu_3O_<7-δ> Superconductor by Sol-Gel Method

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A sol-gel method was applied to preparation of the NdBa<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>7-δ</SUB> superconducting ceramics.<BR>Influence of synthesizing processes and heating conditions of gels on magnetic and electrical properties of NdBa<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>7-δ</SUB> was investigated. It has been found that samples consisting of a single phase of NdBa<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>7-δ</SUB> are obtained by reheating baked gels at 700°C under vacuum, which temperature is lower than those used till now for producing the NdBa<SUB>2</SUB>Cu<SUB>3</SUB>O<SUB>7-δ</SUB> ceramics. It has also been confirmed that undergoing the incongruent melting is effective to improve the superconducting properties. T<SUB>c</SUB>(onset) was reached 93K, and J<SUB>c</SUB> of 1.47×10<SUP>6</SUP> A/cm<SUP>2</SUP> was obtained.

収録刊行物

  • 粉体および粉末冶金

    粉体および粉末冶金 44(8), 797-802, 1997-08-15

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002014497
  • NII書誌ID(NCID)
    AN00222724
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    05328799
  • NDL 記事登録ID
    4275748
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-274
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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