New manufacturing method of iron foam using precursor made of iron, graphite and hematite powders

Taichi Murakami, K. Ohara, Takayuki Narushima, C. Ouchi

研究成果: Conference contribution

抄録

Iron based metal foam has several advantages over aluminum alloy foam such as high strength, high energy absorbability and low cost. However, it is hard to manufacture iron foam using conventional foaming agents because of a significant difference between their decomposition temperatures and melting point of iron. In this study, a new manufacturing method of iron foam in use of CO and CO2 gases as foaming agents was studied, which was generated by reduction of iron oxide by carbon contained in iron melt. In this method, the cold-pressed precursor made of pure iron, graphite and hematite powders is heated at temperatures between solidus and liquidus in Fe-C binary system. The powder size and the amount of hematite used to make a precursor markedly affected the porosity and pore size of iron foam. Iron foam with the porosity of approximately 55% was obtained using the precursor with the composition of Fe-3.1%C-1.0%Fe2O3.

本文言語English
ホスト出版物のタイトルMetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
ページ145-148
ページ数4
出版ステータスPublished - 2008 11 27
イベント5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007 - Montreal, QC, Canada
継続期間: 2008 9 52008 9 7

Other

Other5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007
国/地域Canada
CityMontreal, QC
Period08/9/508/9/7

ASJC Scopus subject areas

  • 金属および合金

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