마이크로전자및패키징학회지 (Journal of the Microelectronics and Packaging Society)

  • 제19권4호
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  • Pages.65-69
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  • 2012
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  • 1226-9360(pISSN)
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  • 2287-7525(eISSN)
한국마이크로전자및패키징학회 (The Korean Microelectronics and Packaging Society)
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전기도금법을 이용한 나노 산화티타늄 니켈 복합도금에 관한 연구

Electrodeposition of Nano TiO2 Powder Dispersed Nickel Composite Coating

  • 박소연 (홍익대학교 신소재공학과) ;
  • 이재호 (홍익대학교 신소재공학과)
  • Park, So-Yeon (Dept. of Materials Science and Engineering, Hongik University) ;
  • Lee, Jae-Ho (Dept. of Materials Science and Engineering, Hongik University)
  • 투고 : 2012.12.17
  • 심사 : 2012.12.28
  • 발행 : 2012.12.30
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초록

복합도금이란 금속 도금층을 매트릭스로 세라믹, 폴리머, 나노분말과 같은 입자를 공석시켜 경도의 향상, 내마모성, 내식성, 자기 윤활성 등의 특성을 갖는 복합 금속피막을 얻어내는 방법으로 본 연구에서는 나노입자로 $TiO_2$를 사용하여 니켈과 함께 복합도금층을 형성하였다. $TiO_2$를 첨가시킨 복합전기도금을 통해 표면저항성 향상, 광분해 효과를 기대할 수 있다. 용액조건 중 pH 변화에 따른 zeta전위를 측정하였다. 초음파처리를 통한 물리적인 방법으로 용액 중 나노분말의 응집을 최소화한 후 $TiO_2$-Ni 복합도금을 실시하였다. 최적의 도금 조건으로 $50^{\circ}C$에서 pH 3.5, 전류밀도 $40mA/cm^2$에서 가장 효과적이었으며 Ti의 함량은 $50^{\circ}C$에서 15-20 at.%로 확인되었다.

Composite coating can be manufactured during the electroplating with the bath containing a suspension of particles: ceramic, polymer, nanopowders. Improvement of hardness, wear resistance, corrosion resistance and lubrication properties are well-known advantage of composite coating. In this study, nano $TiO_2$ powder dispersed Ni composite plating was investigated. The improvement of surface hardness and photo decomposition effects can be expected in this coating. Zeta potential was measured with pH. The effect of ultrasonication time and types of ultrasonicator were studied to minimize the agglomeration of $TiO_2$ nanopowders in the electrolyte. Optimum conditions for nano $TiO_2$ dispersed Ni composite coating were $40mA/cm^2$ of current density, pH 3.5, and $50^{\circ}C$. At these conditions, $TiO_2$ nanoparticles contents in the Ni deposit was 15-20 at.%.

키워드

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  2. 전착법을 이용한 Cu2O 박막 형성 및 공정 조건에 따른 특성 변화 vol.24, pp.2, 2017, https://doi.org/10.6117/kmeps.2017.24.2.037