反応溶浸による高体積率の粒子複合アルミニウム鋳物 Aluminum Castings with High Particle Volume Fraction by Reactive Infiltration

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  Reactive infiltration process which thermit type reaction takes place during infiltration, was investigated to form a hard particle rich layer on aluminum alloy castings. Pure aluminum powder and SiO<sub>2</sub> particles were mixed and compacted. Then Al-Si alloy was poured into a mold containing the compact, and isothermally held at fixed temperature for a certain time. Consequently, the microstructure of product Al<sub>2</sub>O<sub>3</sub> particle formed by the reduction of SiO<sub>2</sub> is varied with holding temperature. The fine Al<sub>2</sub>O<sub>3</sub> particles come into prominence with rising temperature. Even at 1273K, the long period of holding time is required to attain the finer Al<sub>2</sub>O<sub>3</sub> particles dispersed in matrix. Although the porosity of the compact before reactive infiltration was about 30 %, it reduces with increasing temperature and holding time. At 1273K for 3.6 ks holding, a specimen shows the porosity of 6.2 %.

収録刊行物

  • 鋳造工学 = Journal of Japan Foundry Engineering Society  

    鋳造工学 = Journal of Japan Foundry Engineering Society 70(3), 175-179, 1998-03 

    Japan Foundry Engineering Society

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各種コード

  • NII論文ID(NAID)
    10002553565
  • NII書誌ID(NCID)
    AN10514770
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    13420429
  • NDL 記事登録ID
    4437162
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z17-277
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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