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J. Korean Ceram. Soc. > Volume 42(6); 2005 > Article
Journal of the Korean Ceramic Society 2005;42(6): 432.
doi: https://doi.org/10.4191/kcers.2005.42.6.432
DEA 용액으로부터 히드라진의 환원 반응에 의한 니켈 분말 제조
최은영, 이윤복1, 윤석영, 김광호, 김진천2, 임영목2, 김형국1, 김양도
부산대학교 재료공학부
1부산대학교 유전체 물성연구소
2한국기계연구원 재료기술연구소
Preparation of Nickel Powders by the Reduction of Hydrazine from Diethanolamine Solutions
Eun-Young Choi, Yoon-Bok Lee1, Suk-Young Yoon, Kwang-Ho Kim, Sin-Chun Kim2, Yaung-Mok Rhyim2, Hyong-Kuk Kim1, Ynng-Do Kim
School of Materials Science and Engineering, Busan National University
1Research Center f3r Dielectric and Advanced Matter Physics, Busan National University
2Materials Research Station, Korea Institute of Machinery and Materials
Nickel powders synthesized by the reduction of hydrazine of nickel salts fiom diethanolamine(DEA) solution, and investigated the morphological characteristics of nickel powders with the addition of hydrazine, reaction temperature, the composition of mixed solvents. The addition of hydrazine in DEA solution largely affected on size control of nickel powders. Under $N_2H_4/Ni^{2+}$ molar ratio= 1.5 and 2.0 conditions, spherical nickel powders in the submicron range obtained, owing to higher the reduction rate. An increase of temperature increased the size of nickel particles. At $220^{circ}C$ for 40 min, the nickel powders composed of polyhedral particles with high crystalline in the submicron range. The mixed volume ratio of TEA to DEA affected on the increase of particle size and the inhibition of agglomerate between particles.
Key words: Nickel, Powder, DEA solution, Hydrazine, Size control
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