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Studies from Seoul National University Describe New Findings in Materials Science

May 20, 2014



By a News Reporter-Staff News Editor at Physics Week -- New research on Materials Science is the subject of a report. According to news reporting originating from Seoul, South Korea, by VerticalNews correspondents, research stated, "This paper discusses a new method of powder-metallurgy processing to produce regular-structured Cu nanofoams or irregular-structured Cu foams containing both micropores and nanopores."

Our news editors obtained a quote from the research from Seoul National University, "Coarser Cu nanofoam struts (approximately 2.5 times larger) formed in the ribbon samples of the foams subjected to additional sintering at 900 degrees C after initial lower-temperature sintering at 450 degrees C than those formed in the ribbon samples of the foams subjected to additional sintering at 700 degrees C. Furthermore, a much higher degree of strut continuity was observed in the Cu nanofoam sintered at 900 degrees C, which should improve the ductility and structural integrity of the Cu nanofoam. This study can be considered as a framework for using a simple method of powder-based dealloying to produce nanoporous and micro/nanoporous metallic foams for a variety of energy-based applications requiring metallic foam materials with a high density of specific surface area."

According to the news editors, the research concluded: "Although the dealloying process of achieving Cu nanofoams is not new, this powder-based method has significant implications because often a difficult and expensive material shaping process can be avoided by forming the precursor alloy with a near-net shape geometry in the method."

For more information on this research see: Novel method of powder-based processing of copper nanofoams for their potential use in energy applications. Materials Chemistry and Physics, 2014;145(1-2):6-11. Materials Chemistry and Physics can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Materials Chemistry and Physics - www.elsevier.com/wps/product/cws_home/504097)

The news editors report that additional information may be obtained by contacting H. Jo, Seoul National University, Sch Chem & Biol Engn, Center Nanoparticle Res, Inst Basic Sci, Seoul 151744, South Korea. Additional authors for this research include Y.H. Cho, M. Choi, J. Cho, J.H. Um, Y.E. Sung and H. Choe.

Keywords for this news article include: Asia, Seoul, South Korea, Materials Science

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Source: Physics Week


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