- Microstructural Feature of Full-densified W-Cu Nanocomposites Containing Low Cu Content
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Jai-Sung Lee, Sung-Soo Jung, Joon-Phil Choi, Geon-Yong Lee
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J Powder Mater. 2013;20(2):138-141.
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DOI: https://doi.org/10.4150/KPMI.2013.20.2.138
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- The microstructure evolution during sintering of the W-5 wt.%Cu nanocomposite powders was investigated for the purpose of developing a high density W-Cu alloy. The W-5 wt.%Cu nanopowder compact, fully-densified during sintering at 1623 K, revealed a homogeneous microstructure that consists of high contiguity structures of W-W grains and an interconnected Cu phase located along the edges of the W grains. The Vickers hardness of the sintered W-5 wt.%Cu specimen was 427pm22 Hv much higher than that (276pm19 Hv) of the conventional heavy alloy. This result is mostly due to the higher contiguity microstructure of the W grains compared to the conventional W heavy alloy.
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Citations
Citations to this article as recorded by  - Evolution of microstructure and wear-friction behavior of W-30 wt.% Cu nanocomposite produced via a mechanochemical synthesis route
K. Zangeneh-madar, H. Abbaszadeh, E. Salahshour-rad, S. Seyyedin, M. Ahangarkani
International Journal of Materials Research.2020; 111(6): 491. CrossRef - In-situ synthesis of tungsten nanoparticle attached spherical tungsten micro-powder by inductively coupled thermal plasma process
Chulwoong Han, Hyunwoong Na, Yonghwan Kim, Hanshin Choi
International Journal of Refractory Metals and Hard Materials.2015; 53: 7. CrossRef
- Consolidation of Iron Nanopowder by Nanopowder-Agglomerate Sintering at Elevated Temperature
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Jai-Sung Lee, Joon-Chul Yun, Joon-Phil Choi, Geon-Yong Lee
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J Powder Mater. 2013;20(1):1-6.
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DOI: https://doi.org/10.4150/KPMI.2013.20.1.001
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- The key concept of nanopowder agglomerate sintering (NAS) is to enhance material transport by controlling the powder interface volume of nanopowder agglomerates. Using this concept, we developed a new approach to full density processing for the fabrication of pure iron nanomaterial using Fe nanopowder agglomerates from oxide powders. Full density processing of pure iron nanopowders was introduced in which the powder interface volume is manipulated in order to control the densification process and its corresponding microstructures. The full density sintering behavior of Fe nanopowders optimally size-controlled by wet-milling treatment was discussed in terms of densification process and microstructures.
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Citations
Citations to this article as recorded by - Influence of the initial powder characteristic on the densified tungsten microstructure by spark plasma sintering and hot isostatic pressing
Ji Young Kim, Eui Seon Lee, Youn Ji Heo, Young-In Lee, Jongmin Byun, Sung-Tag Oh
Powder Metallurgy.2023; 66(5): 644. CrossRef - Sintering behavior of bimodal iron nanopowder agglomerates
Jun‐ll Song, Geon‐Yong Lee, Eui‐Jin Hong, Carolline S. Lee, Jai‐Sung Lee
Journal of the American Ceramic Society.2019; 102(6): 3791. CrossRef - Fabrication of YAG : Er3+powders for the single crystal growth according to the synthetic temperature and flux concentration
Cheol Woo Park, Suk Hyun Kang, Jae Hwa Park, Hyun Mi Kim, Jae Sang Choi, Hyo Sang Kang, Kwang Bo Shim
Journal of the Korean Crystal Growth and Crystal Technology.2015; 25(4): 166. CrossRef - Consolidation of Hierarchy-Structured Nanopowder Agglomerates and Its Application to Net-Shaping Nanopowder Materials
Jai-Sung Lee, Joon-Phil Choi, Geon-Yong Lee
Materials.2013; 6(9): 4046. CrossRef
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