Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Optimization of Wet Reduction Processing for Nanosized Cobalt Powder

나노코발트 분말합성을 위한 액상환원공정의 최적화

  • Hong, Hyun-Seon (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Jung, Hang-Chul (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Kim, Geon-Hong (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Kang, Lee-Seung (Advanced Materials & Processing Center, Institute for Advanced Engineering (IAE)) ;
  • Suk, Han-Gil (Department of Materials and Metallurgical Engineering, Kangwon National University)
  • 홍현선 (고등기술연구원 신소재공정센터) ;
  • 정항철 (고등기술연구원 신소재공정센터) ;
  • 김건홍 (고등기술연구원 신소재공정센터) ;
  • 강이승 (고등기술연구원 신소재공정센터) ;
  • 석한길 (강원대학교)
  • Received : 2013.04.02
  • Accepted : 2013.06.14
  • Published : 2013.06.28
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Abstract

Nano-sized cobalt powder was fabricated by wet chemical reduction method at room temperature. The effects of various experimental variables on the overall properties of fabricated nano-sized cobalt powders have been investigated in detail, and amount of NaOH and reducing agent and dropping speed of reducing agent have been properly selected as experimental variables in the present research. Minitab program which could find optimized conditions was adopted as a statistic analysis. 3D Scatter-Plot and DOE (Design of Experiments) conditions for synthesis of nano-sized cobalt powder were well developed using Box-Behnken DOE method. Based on the results of the DOE process, reproducibility test were performed for nano-sized cobalt powder. Spherical nano-sized cobalt powders with an average size of 70-100 nm were successfully developed and crystalline peaks for the HCP and FCC structure were observed without second phase such as $Co(OH)_2$.

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References

  1. H. L. de Villiers Lovelock, P. W. Richter, J. M. Benson and P. M. Young: J. Thermal SprayTechnol., 7 (1998) 97. https://doi.org/10.1007/s11630-998-0005-1
  2. A. K. Akasawat: Proceedings of the 15th International Thermal Spray Conference, (1998) 281.
  3. H. M. Hawthorne, B. Arsenault, J. P. Immarigeon, J. G. Legoux and V. R. Parameswaran: Wear, 225 (1999) 825.
  4. A. Karimi, Ch. Verdon, J. L. Martin and R. K. Schmid: Wear, 186 (1995) 480.
  5. Cobalt facts, Cobalt Supply & Demand 2009, Cobalt Development Institute, (2010).
  6. K. Mohan and P. R. Strutt: Nanostructured Mater., 7 (1996) 547. https://doi.org/10.1016/0965-9773(96)00028-1
  7. B. K. Kim, G. H. Ha, G. G. Lee and D. W. Lee: Nanostructured Mater., 9 (1997) 233. https://doi.org/10.1016/S0965-9773(97)00061-5
  8. L. C. Sterns, J. H. Zhao and P. Harmer: J. Eur. Ceram. Soc., 10 (1992) 473. https://doi.org/10.1016/0955-2219(92)90022-6
  9. J. R. Weertman, D. Farkas, K. Hemker, H. Kung, M. Mayo, R. Mitra and H. Van Swygenhoven: MRS Bulletin, 24 (1999) 44.
  10. K. Jia and T. E. Fischer: Wear, 200 (1996) 206. https://doi.org/10.1016/S0043-1648(96)07277-8
  11. H. S. Hong, S. Lee, G. H. Kim, T. S. Kim, H. Y. Kang and S. J. Hong: J. Kor. Powder Metall. Inst., 16 (2009) 379.
  12. D. J. Kim, H. S. Chung and K. N. Yu: Mater. Res. Bull., 37 (2002) 2067. https://doi.org/10.1016/S0025-5408(02)00939-X
  13. C. Johans, M. Pohjakallioa, M. Ijas, Y. Ge and K. Oritturi: Colloid Surf. A-Physicochem. Eng. Asp., 330 (2008) 14. https://doi.org/10.1016/j.colsurfa.2008.07.013
  14. A. M. Ibrahim, M. M. Abd El-Latif and M. M. Mahmoud: J. Alloys Compd., 506 (2010) 201. https://doi.org/10.1016/j.jallcom.2010.06.177
  15. S. Gurmen, S. Stopic and B. Friedrich: Mater. Res. Bull., 41 (2006) 1882. https://doi.org/10.1016/j.materresbull.2006.03.006
  16. L. Zhang, H. Z. Wang and J. G. Li: Mater. Chem. Phys., 116 (2009) 514. https://doi.org/10.1016/j.matchemphys.2009.04.022
  17. J. H. Huang, C. Kargl-Simard, M. Oliazadeh and A. M. Alfantazi: Hydrometallurgy, 75 (2004) 77. https://doi.org/10.1016/j.hydromet.2004.06.008
  18. J. A. Jacquez: J. Franklin Inst., 335 (1998) 259. https://doi.org/10.1016/S0016-0032(97)00004-5
  19. H. S. Hong, Y. D. Ko, L. S. Kang, G. H. Kim and H. C. Jung: J. Kor. Powd. Met. Inst., 18 (2011) 244 (Korean). https://doi.org/10.4150/KPMI.2011.18.3.244
  20. Jianming Lu, D.B. Dreisinger and W.C. Cooper: Hydrometallurgy, 45 (1997) 305. https://doi.org/10.1016/S0304-386X(96)00086-2

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