Effects of heating rate, holding temperature and holding time on porosity and pore morphology of aluminum foams fabricated by powder metallurgy process

Hironori Seki, Shingo Sasaki, Masahisa Otsuka, Hideo Nakajima

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We studied effects of heating rate, holding temperature and holding time on porosity and pore morphology of aluminum foams fabricated by powder metallurgy process. When the temperature of the specimen exceeds the melting point, the specimen starts foaming. The porosity of the molten specimen increases with increasing furnace temperature, and the porosity of the aluminum foam reaches about 80%. Pore morphology of aluminum foam becomes inhomogeneous because the cell face of the aluminum foam collapses during the passage of time. The heating rate hardly affects the maximum porosity. The furnace temperature as holding temperature are closely related with the porosity of aluminum foam. The porosity map of heating rate and elapsed time was obtained, and the aluminum foam with arbitrary porosity can be made using the porosity map.

本文言語English
ページ(範囲)278-284
ページ数7
ジャーナルNippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
72
4
DOI
出版ステータスPublished - 2008 4
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学
  • 材料力学
  • 金属および合金
  • 材料化学

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