Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Preparation of Nickel Powders by the Reduction of Hydrazine from Diethanolamine Solutions

DEA 용액으로부터 히드라진의 환원 반응에 의한 니켈 분말 제조

  • Choi, Eun-Young (School of Materials Science and Engineering, Busan National University) ;
  • Lee, Yoon-Bok (Research Center f3r Dielectric and Advanced Matter Physics, Busan National University) ;
  • Yoon, Suk-Young (School of Materials Science and Engineering, Busan National University) ;
  • Kim, Kwang-Ho (School of Materials Science and Engineering, Busan National University) ;
  • Kim, Sin-Chun (Materials Research Station, Korea Institute of Machinery and Materials) ;
  • Rhyim, Yaung-Mok (Materials Research Station, Korea Institute of Machinery and Materials) ;
  • Kim, Hyong-Kuk (Research Center f3r Dielectric and Advanced Matter Physics, Busan National University) ;
  • Kim, Ynng-Do (School of Materials Science and Engineering, Busan National University)
  • 최은영 (부산대학교 재료공학부) ;
  • 이윤복 (부산대학교 유전체 물성연구소) ;
  • 윤석영 (부산대학교 재료공학부) ;
  • 김광호 (부산대학교 재료공학부) ;
  • 김진천 (한국기계연구원 재료기술연구소) ;
  • 임영목 (한국기계연구원 재료기술연구소) ;
  • 김형국 (부산대학교 유전체 물성연구소) ;
  • 김양도 (부산대학교 재료공학부)
  • Published : 2005.06.01
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Abstract

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.

Keywords

References

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