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J. Korean Ceram. Soc. > Volume 42(10); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(10): 649.
doi: https://doi.org/10.4191/kcers.2005.42.10.649
용액환원법에 의한 MLCC용 단분산 니켈 미분말의 합성
김강민, 이종흔, 윤선미1, 이용균1, 이현철1, 최재영1
고려대학교 신소재공학부
Preparation of Mono-Disperse Ni Powder for Multilayer Ceramic Capacitor by Solution-Reduction Method
Kang-Min Kim, Jong-Heun Lee, Seon-Mi Yoon1, Yong-Kyun Lee1, Hyun-Chul Lee1, Jae-Young Choi1
Department of Materials Science and Engineering, Korea University
1Materials and Devices Laboratory, Samsung Advanced Institute of Technology
A mono-disperse Ni powders for multilayer ceramic capacitors were prepared in a large scale by solution reduction method using $NiSO_{4}$ $N_{2}$$H_{4}$and NaOH. The exothermic reactions such as Ni-complex formation between highly concentrated $NiSO_{4}$ and $N_{2}$$H_{4}$ and the reduction of $Ni^{2+}$ into Ni provided thermal energy sufficient for spontaneous solution-reduction reaction. Because well-defined Ni particles could be prepared without external heating, the present method was named as 'auto-thermal method'. The formation of Ni
Key words: Ni powder, Exothermic reduction, Ni-Complex, Mono-disperse powder, Solution reduction
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