ガスバブリング噴霧法による微細アルミニウム粉末の作製

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タイトル別名
  • Production of fine aluminum powders by gas bubbling atomization process.
  • ガスバブリング フンムホウ ニ ヨル ビサイ アルミニウム フンマツ ノ サク

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抄録

A new type atomization technique for aluminum powders is proposed. In this process, the bubbles produced by the ejection of Ar gas into molten metal atomize it to fine liquid particles, which reach upper rotating disk cooled with liquid N2, and are crushed into the finer solid particles. The obtained aluminum powders were polycrystalline, and their shapes were very irregular. The size of particles was distributed at value between 0.5 and 10 μm. A mean particle size of the powder decreased with lowering atomization temperature and with increasing discharge of Ar gas and rotational speed of the disk. Nozzle diameter also influenced delicately on the distribution of particle size.

収録刊行物

  • 軽金属

    軽金属 37 (10), 665-669, 1987

    一般社団法人 軽金属学会

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