Effect of saturation pressure difference on metal-silicide nanopowder formation in thermal plasma fabrication

Masaya Shigeta, Takayuki Watanabe

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抜粋

A computational investigation using a unique model and a solution algorithm was conducted, changing only the saturation pressure of one material artificially during nanopowder formation in thermal plasma fabrication, to highlight the effects of the saturation pressure difference between a metal and silicon. The model can not only express any profile of particle size-composition distribution for a metal-silicide nanopowder even with widely ranging sizes from sub-nanometers to a few hundred nanometers, but it can also simulate the entire growth process involving binary homogeneous nucleation, binary heterogeneous co-condensation, and coagulation among nanoparticles with different compositions. Greater differences in saturation pressures cause a greater time lag for co-condensation of two material vapors during the collective growth of the metal-silicide nanopowder. The greater time lag for co-condensation results in a wider range of composition of the mature nanopowder.

元の言語英語
記事番号43
ジャーナルNanomaterials
6
発行部数3
DOI
出版物ステータス出版済み - 3 7 2016

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All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Materials Science(all)

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