The Effect of Mixing Ratios on Pore Properties of Fe Foam Fabricated Using Slurry Coating Process

Abstract:

Metal foams have a cellular structure consisting of a solid metal containing a large volume fraction of pores. In particular, open, penetrable pores are necessary for industrial applications such as in high temperature filters and as support for catalysts. In this study, Fe foam with greater than 90% porosity, 2-mm pore size was successfully fabricated using a slurry coating process and the pore properties were characterized. The Fe and Fe₂O₃ powder mixing ratios were controlled to produce Fe foam samples with different pore sizes and porosity. First, the slurry was prepared through the uniform mixing of powders, distilled water, and polyvinyl alcohol (PVA). The amount of slurry coated on the PU foam increased with theFe₂O₃ mixing powder ratio, but the shrinkage and porosity of the Fe foams decreased, respectively, with increasing Fe₂O₃ mixing powder ratio.

• Periodical: Materials Science Forum (Volume 860)
• Pages: 166-169
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.860.166
• Online since: July 2016
• Authors: Jung Yeul Yun, Da Hee Park, Jei Pil Wang*
• Keywords: Metal Foam, Micro-CT, Porosity, Sintering, Slurry Coating

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