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Synthesis of Ag-Cu Composite Powders for Electronic Materials by Electroless Plating Method

무전해 도금법을 이용한 전자소재용 은-구리 복합분말의 제조

  • Yoon, C.H. (Minerals and Material Processing Division, Korea Institute of Geosciences and Mineral Resources(KIGAM)) ;
  • Ahn, J.G. (Minerals and Material Processing Division, Korea Institute of Geosciences and Mineral Resources(KIGAM)) ;
  • Kim, D.J. (Minerals and Material Processing Division, Korea Institute of Geosciences and Mineral Resources(KIGAM)) ;
  • Sohn, J.S. (Minerals and Material Processing Division, Korea Institute of Geosciences and Mineral Resources(KIGAM)) ;
  • Park, J.S. (Minerals and Material Processing Division, Korea Institute of Geosciences and Mineral Resources(KIGAM)) ;
  • Ahn, Y.G. (Department of chemistry, Konyang University)
  • 윤치호 (한국지질자원연구원 자원활용소재연구부) ;
  • 안종관 (한국지질자원연구원 자원활용소재연구부) ;
  • 김동진 (한국지질자원연구원 자원활용소재연구부) ;
  • 손정수 (한국지질자원연구원 자원활용소재연구부) ;
  • 박제신 (한국지질자원연구원 자원활용소재연구부) ;
  • 안양규 (건양대학교 대학원 화학과)
  • Published : 2008.06.28

Abstract

Silver coated copper composite powders were prepared by electroless plating method by controlling the activation and deposition process variables such as feeding rate of silver ions solution, concentration of reductant and molar ratio of activation solution $(NH_4OH/(NH_4)_2SO_4)$ at room temperature. The characteristics of the product were verified by using a scanning electron microscopy (SEM), X-ray diffraction (XRD) and atomic absorption (A.A.). It is noted that completely cleansing the copper oxide layers and protecting the copper particles surface from hydrolysis were important to obtain high quality Ag-Cu composite powders. The optimum conditions of Ag-Cu composite powder synthesis were $NH_4OH/(NH_4)_2SO_4$ molar ratio 4, concentration of reductant 15g/l and feeding rate of silver ions solution 2 ml/min.

Keywords

References

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