한국표면공학회지 (Journal of the Korean institute of surface engineering)
- 제23권3호
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- Pages.173-182
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- 1990
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- 1225-8024(pISSN)
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- 2288-8403(eISSN)
전기접점 재료상에 입힌 경질금고금층의 특성연구 Properties of a Hard Gold plating Layer on Electrical Contace Materials
초록
In order to prevent the thermal and enviromenatal degradation of contact materials a nickel layer was plated as an undercoat of gold plating on the surface phosphorous bronze. The thickness of nikel and gold coating and chemical resistance of the coatings were measured at various conditions. Variation of morphology and chemical composition was studied by SEM, EDS and ESCA, respectively. Nickel layer was found to act as a thermal diffusion barrier and to retard the diffusion of copper from substrate to gold coating in the temperature
키워드