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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationMetFoam 2007 - Proceedings of the 5th International Conference on Porous Metals and Metallic Foams
Pages145-148
Number of pages4
Publication statusPublished - 2008 Nov 27
Event5th International Conference on Porous Metals and Metallic Foams, MetFoam 2007 - Montreal, QC, Canada
Duration: 2008 Sep 52008 Sep 7

Other

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

ASJC Scopus subject areas

  • Metals and Alloys

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