- Cu-Ni-P Alloy Nano Powders Prepared by Electrical Wire Explosion
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Won-Baek Kim, Je-Shin Park, Chang-Youl Suh, Jae-Chun Lee, Jung-Hwan Kim, Yong-Jun Oh
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J Korean Powder Metall Inst. 2007;14(2):108-115.
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DOI: https://doi.org/10.4150/KPMI.2007.14.2.108
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- Cu-Ni-P alloy nano powders were fabricated by the electrical explosion of electroless Ni plated Cu wires. The effect of applied voltage on the explosion was examined by applying pulse voltage of 6 and 28 kV, The estimated overheating factor, K, were 1.3 for 6 kV and 2.2 for 28 kV. The powders produced with pulse voltage of 6 kV were composed of Cu-rich solid solution, Ni-rich solid solution, and Ni_3P phase. While, those produced with 28 kV were complete Cu-Ni-P solid solution and small amount of Ni_3P phase. The initial P content of 6.5 at.% was reduced to 2-3 at.% during explosion due to its high vapour pressure.
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Citations
Citations to this article as recorded by  - In-Situ Characterization of Metal Nanopowders Manufactured by the Wire Electrical Explosion Process
Seung-Bok Lee, Jae Hee Jung, Gwi-Nam Bae, Dong-Jin Lee
Aerosol Science and Technology.2010; 44(12): 1131. CrossRef
- Fabrication of Cu-Zn Alloy Nano Powders by Wire Explosion of Electrodeposited Wires
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Won-Baek Kim, Je-Shin Park, Chang-Yeul Suh, Jae-Chun Lee, Yong-Jun Oh, Jeong-Il Mun
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J Korean Powder Metall Inst. 2007;14(1):38-43.
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DOI: https://doi.org/10.4150/KPMI.2007.14.1.038
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- Cu-Zn alloy nano powders were fabricated by the electrical explosion of Zn-electroplated Cu wire along with commercial brass wire. The powders exploded from brass wire were composed mainly of alpha,beta,;and;gamma phases while those from electroplated wires contained additional Zn-rich phases as varepsilon, and Zn. In case of Zn-elec-troplated Cu wire, the mixing time of the two components during explosion might not be long enough to solidify as the phases of lower Zn content. This along with the high vapor pressure of Zn appears to be the reason for the observed shift of explosion products towards the high-Zn phases in electroplated wire system.
- Metal Nano Powders as a New Getter Material
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Won-Baek Kim, Je-Shin Park, Chang-Youl Suh, Han-Kwon Chang, Jae-Chun Lee, Mi-Young Park
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J Korean Powder Metall Inst. 2007;14(1):56-62.
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DOI: https://doi.org/10.4150/KPMI.2007.14.1.056
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- Getter property of nano-sized metallic powders was evaluated as a possible candidate for the future getter material. For the purpose, Ti powders of about 50 nm were prepared by electrical wire explosion. Commercial Ti powders of about 22 micrometer were tested as well for comparison. The room-temperature hydrogen-sorption speed of nano-sized Ti powders was 1.34;L/seccdotcm2 which was more than 4 times higher than that of micron-sized ones. The value is comparable to or even higher than those of commercial products. Its sorption speed increases with activation temperature up to 500°C above which it deteriorates due to low-temperature sintering effect of nano-sized particles.
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