- Fabrication of Porous Cu by Freeze-Drying Method of CuO-Camphene Slurry
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Min-Soo Kim, Sung-Tag Oh, Si-Young Chang, Myung-Jin Suk
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J Korean Powder Metall Inst. 2011;18(4):327-331.
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DOI: https://doi.org/10.4150/KPMI.2011.18.4.327
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- In order to fabricate the porous metal with controlled pore characteristics, unique processing by using metal oxide powder as the source and camphene as the sublimable material is introduced. CuO powder was selected as the source for the formation of Cu metal via hydrogen reduction. Camphene-based CuO slurry, prepared by milling at 47°C with a small amount of dispersant, was frozen at -25°C. Pores were generated subsequently by sublimation of the camphene. The green body was hydrogen-reduced at 200°C for 30 min, and sintered at 500-700°C for 1 h. Microstructural analysis revealed that the sintered Cu showed aligned large pore channels parallel to the camphene growth direction, and fine pores are formed around the large pore. Also, it showed that the pore size was controllable by the slurry concentration.
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Citations
Citations to this article as recorded by  - Freeze drying for porous Mo with different sublimable vehicle compositions in the camphor-naphthalene system
Sung-Tag Oh, Young Do Kim, Myung-Jin Suk
Materials Letters.2015; 139: 268. CrossRef - Effect of Solidification Condition of Sublimable Vehicles on the Pore Characteristics in Freeze Drying Process
Myung-Jin Suk, Ji Soon Kim, Sung-Tag Oh
Journal of Korean Powder Metallurgy Institute.2014; 21(5): 366. CrossRef - Synthesis and Microstructure of Porous Al2O3 with Nano-Sized Cu Dispersions
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Korean Journal of Materials Research.2013; 23(1): 67~71. CrossRef - Effect of Powder Characteristic and Freeze Condition on the Pore Characteristics of Porous W
Na-Yeon Kwon, Sung-Tag Oh
Journal of Korean Powder Metallurgy Institute.2012; 19(4): 259. CrossRef - Fabrication of Porous Mo by Freeze-Drying and Hydrogen Reduction of MoO3/Camphene Slurry
Wonsuk Lee, Sung-Tag Oh
Journal of Korean Powder Metallurgy Institute.2012; 19(6): 446. CrossRef - Fabrication and Properties of Porous Tungsten by Freeze-Drying Process
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Korean Journal of Materials Research.2011; 21(9): 520~524. CrossRef
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