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http://dx.doi.org/10.3740/MRSK.2002.12.10.803

Preparation of Ultrafine Nickel Powders by Wet Reduction Process  

Lee, Yoon-Bok (School of materials Science and Engineering, Pusan National University)
Moon, Young-Tae (MLCC Technical group, Samsung Electro-Mechanics Co., Ltd,)
Shin, Dong-Woo (Division of Mterials Science and Engineering, Gyeongsang National University)
Kim, Kwang-Ho (School of materials Science and Engineering, Pusan National University)
Publication Information
Korean Journal of Materials Research / v.12, no.10, 2002 , pp. 803-808 More about this Journal
Abstract
Nickel powders were prepared from nickel chloride solution by wet reduction process, and the size control of the particles was investigated with reactant concentration, dispersant agent, and the addition of ethanol as an organic solvent in NiCl$_2$ aqueous solution. The size of the particle decreased with the increase of nickel chloride concentration. Their average particle size were 1.9$\mu\textrm{m}$, 1.6$\mu\textrm{m}$ and $1.5\mu\textrm{m}$ with 0.5M, 0.8M and 1.0M of nickel chloride concentration respectively. The spherical particle was easily controlled by the addition of ethanol as an organic solvent. Especially, in 30 vol% of ethanol, the average particle size and specific surface area were about 0.2$\mu\textrm{m}$ and 8.98m$^2$/g, respectively.
Keywords
Nickel powder; Size control of the particles; Wet reduction process;
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Times Cited By KSCI : 3  (Citation Analysis)
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