レーザ照射による超電導体の接合II Connecting Superconductors by Laser Irradiation II

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A study on connecting superconductors of Y system 123 phase through the laser irradiation treatment has been conducted. Superconductive powder of the identical phase pasted with a mixture of organic binder and solvent were filled as a medium between the two pieces of the superconductive bulk installed on a jig system, and which were set on a X-Y table to be irradiated by CO<SUB>2</SUB> laser accompanied by oxygen gas blow along its contact line under the conditions : laser output power 260-320 W at defocus distance of focal point 120 mm, assist gas pressure 98-294 kPa, beam scan speed 1-8 mm/min, and beam scan times 1-3 strokes.<BR>The results indicated that the electric resistance was almost constant before the laser irradiation but 57.9 K as Tc<SUB>(and)</SUB> was obtained for the certain samples when blown with a great deal of oxygen gas at low speed beam scans at the laser irradiation. SEM image and EPMA mapping after the laser irradiation showed that the superconductive bulk and the paste were connected successfully.

収録刊行物

  • 粉体および粉末冶金  

    粉体および粉末冶金 44(2), 173-176, 1997-02-15 

    Japan Society of Powder and Powder Metallurgy

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各種コード

  • NII論文ID(NAID)
    10002013493
  • 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
    4139931
  • 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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