Bi-2212相への酸化物粒子添加効果 Effects of Addition of Oxide Particles on Formation and Superconducting Properties of the Bi-2212 Phase

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Bi-2212/Ag tape samples with finely dispersed oxide(x-Al<SUB>2</SUB>O<SUB>3</SUB> or MgO) particles were prepared by the partial melt-solidification technique. The formation and superconducting properties of the tape samples have been studied in relation to microstructure. In case of a-Al<SUB>2</SUB>O<SUB>3</SUB> particles addition, as the oxide additive content increased, the Ic value at 77K and OT decreased remarkably because of reaction between a-Al<SUB>2</SUB>O<SUB>3</SUB> and 2212 phase. On the other hand, MgO particles were uniformly dispersed in the Bi-2212 matrix without any reaction between 2212 phase and MgO, so that Ic almost unchanged. Isothermal magnetic hysteresis loop of MgO added samples was larger than that of non-added samples. These results suggested that MgO particle addition was effective for improvement in the flux pinning properties of the Bi-2212 phase.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 43(2), 183-186, 1996-02-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002011282
  • 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
    3926715
  • 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  NDL  J-STAGE 
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