Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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A Study on the Coloring of 304 Stainless Steel Screen for Reducing Light Reflectivity

304스테인리스강 스크린의 광 반사율 감소를 위한 착색 처리에 관한 연구

  • Kim, Ki-Ho (Department of New Materials Eng., Chungbuk National University)
  • 김기호 (충북대학교 신소재공학과)
  • Received : 2010.07.05
  • Accepted : 2010.08.30
  • Published : 2010.08.31
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Abstract

The colored films formed on 304 stainless steel plates by immersion treatment and electrochemical one in a solution containing sulphuric acids and chromic acids were studied by SEM, AES, and spectrophotometer. The thicknesses of the films by 20 minutes treatment were about 200 nm and it became thinner as the treatment times were increased. The surface texture showed a tortuous network of interlinking pathways. The color of the 304 steel surface changed from metallic white to gray, black, red, yellow-green, and green-blue, gradually, by the treatment time was increased. The reflectivity measured by UV-VIS-NIR spectrophotometer was reduced from max. 38% of basis metal to min. 3.5% of colored surface.

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References

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  1. The Effect of Coloring Condition on the Surface Characteristic of 304 Stainless Steel vol.44, pp.5, 2011, https://doi.org/10.5695/JKISE.2011.44.5.220