- Fabrication and Pore Characteristics of Cu Foam by Slurry Coating Process
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Dahee Park, Eun-Mi Jung, Sangsun Yang, Jung-Yeul Yun
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J Korean Powder Metall Inst. 2015;22(2):87-92. Published online April 1, 2015
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DOI: https://doi.org/10.4150/KPMI.2015.22.2.87
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Abstract
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Metallic porous materials have many interesting combinations of physical and geometrical properties with very low specific weight or high gas permeability. In this study, highly porous Cu foam is successfully fabricated by a slurry coating process. The Cu foam is fabricated specifically by changing the coating amount and the type of polyurethane foam used as a template. The processing parameters and pore characteristics are observed to identify the key parameters of the slurry coating process and the optimized morphological properties of the Cu foam. The pore characteristics of Cu foam are investigated by scanning electron micrographs and micro-CT analyzer, and air permeability of the Cu foam is measured by capillary flow porometer. We confirmed that the characteristics of Cu foam can be easily controlled in the slurry coating process by changing the microstructure, porosity, pore size, strut thickness, and the cell size. It can be considered that the fabricated Cu foams show tremendous promise for industrial application.
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