Development of a new method for manufacturing iron foam using gases generated by reduction of iron oxide

Taichi Murakami, Kensuke Ohara, Takayuki Narushima, Chiaki Ouchi

研究成果: Article査読

24 被引用数 (Scopus)

抄録

A new method for manufacturing iron foam using CO and CO2 as foaming gases was studied. This method consists of three stages: (1) mixing powders of pure iron, graphite, and hematite; (2) preparing the precursor by cold pressing the mixed powders; and (3) foaming by heating the precursor at temperatures between the liquidus and solidus in the Fe-C binary system. Molten iron containing carbon is foamed by gases generated by a reduction reaction. Optimizations of both the composition of the precursor and the heating conditions are required to produce the iron foam with high porosity. It was found that the content and powder size of hematite in the precursor significantly affect the porosity and pore diameter of the iron foam. Iron foam with a porosity of 55% and average pore diameter of around 500 μm is obtained by heating the precursor of Fe-3.1 mass%C-1.0 mass%Fe2O3 at 1543 K.

本文言語English
ページ(範囲)2937-2944
ページ数8
ジャーナルMaterials Transactions
48
11
DOI
出版ステータスPublished - 2007 11

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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