自発的溶浸法による SiC粒子分散 Al-Si合金複合材料の製造

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タイトル別名
  • Fabrication of MMCs by Spontaneous Infiltration of Al-Si melt into SiCp Preform
  • ジハツテキ ヨウシンホウ ニ ヨル SiC リュウシ ブンサン Al Si ゴウキン フクゴウ ザイリョウ ノ セイゾウ

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  To produce partially composed metal matrix composites, namely discontinuous MMCs, a spontaneous infiltration process was examined. The preforms of interpenetrated composites with SiC particles were infiltrated without pressure using Al-Si melts containing Ca or Mg. The preforms were fabricated using waterglass binder containing Fe3O4 powder. As the infiltration process is controlled by a wetting phenomenon, we studied this technique based on reactive wetting.<br>  The preforms were sintered in a Tamman tube at 1173K before infiltration and then infiltrated in air at 1173 to 1273K. In some experiments, pure aluminum powder was placed on the intered SiCp to increase the interfacial area and the interfacial reaction. The combined conditions resulted in complete infiltration without pressure in air at 1173 K. The infiltration rate was evaluated by measuring the weight changein the melt using a load sensor. It was confirmed that the infiltration was completed within 300 s while the preforms were held in the melt.

収録刊行物

  • 鋳造工学

    鋳造工学 75 (1), 29-34, 2003

    公益社団法人 日本鋳造工学会

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