溶湯撹拌法によるナノサイズSiC粒子のアルミニウム合金への複合化 Fabrication process of metal matrix composite with nano-size SiC particle produced by vortex method

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The fabrication of metal matrix composite (MMC<sub>p</sub>) by vortex process is the general method due to the advantage of its convenience. However in the case of fine particles the surface property of the particle appears dominantly, especially in nano-size particles the agglomeration occurs and the fabrication of MMC<sub>p</sub> is reduced to be difficult. It is analyzed that the strength of the MMC<sub>p</sub> is dominated by the ascent of the dislocation density. Further, as the dispersion strengthening mechanism can be anticipated, dispersions of more fine particles into the matrix are required. In this study, the influences on various primary factors for solving an agglomeration problem are examined using SiC particles of 0.3 μm (the minimum diameter in the market) into 6061 Al alloy by the vortex method. From this study, the following results are obtained, (1) It is found that MMC<sub>p</sub> with no agglomeration can be fabricated by conducting the following procedure; pre-treatment, disagglomeration of powder, Ca addition and stirring in the semi-solid range. (2) It is deduced that the main factors of forming the agglomeration in the matrix of MMC<sub>p</sub> are the yield of SiO<sub>2</sub> on the surface of SiC and the reduction of the void ratio of SiC powder.

収録刊行物

  • 軽金属  

    軽金属 49(4), 149-154, 1999-04-30 

    The Japan Institute of Light Metals

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各種コード

  • NII論文ID(NAID)
    10002666243
  • NII書誌ID(NCID)
    AN00069773
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    04515994
  • NDL 記事登録ID
    4705273
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-284
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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