Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Electrospray and Thermal Treatment Process for Enhancing Surface Roughness of Fecralloy Coating Layer on a Large Sized Substrate

대면적 Fecralloy 코팅층의 표면 거침도 극대화를 위한 정전분무 및 열처리 공정 연구

  • Lee, Hye Moon (Powder Technology Department, Korea Institute of Materials Science) ;
  • Koo, Hye Young (Materials Implementation Department, Korea Institute of Materials Science) ;
  • Yang, Sangsun (Powder Technology Department, Korea Institute of Materials Science) ;
  • Park, Dahee (Powder Technology Department, Korea Institute of Materials Science) ;
  • Jung, Sooho (Powder Technology Department, Korea Institute of Materials Science) ;
  • Yun, Jung-Yeul (Powder Technology Department, Korea Institute of Materials Science)
  • 이혜문 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 구혜영 (한국기계연구원 부설 재료연구소 소재실용화연구실) ;
  • 양상선 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 박다희 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 정수호 (한국기계연구원 부설 재료연구소 분말기술연구실) ;
  • 윤중열 (한국기계연구원 부설 재료연구소 분말기술연구실)
  • Received : 2017.01.18
  • Accepted : 2017.01.26
  • Published : 2017.02.28
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Abstract

Fecralloy coating layer with large surface area is suitable for use as a filter media for efficient removal of hot gaseous pollutants exhausted from combustion processes. For uniform preparation of a Fecralloy coating layer with large surface area and strong adhesion to substrate, electrospray coating and thermal treatment processes are experimentally optimized in this study. A nano-colloidal solution with 0.05 wt% Fecralloy nanoparticles is successfully prepared. Optimized electrospraying conditions are experimentally discovered to prepare a uniform coating layer of Fecralloy nano-colloidal solution on a substrate. Drying the electrospray coated Fecralloy nano-colloidal solution layer at $120^{\circ}C$ and subsequent heating at $600^{\circ}C$ are the best post-treatment for enhancing the adhesion force and surface roughness of the Fecralloy coating layer on a substrate. An electrospray coating system, consisting of several multi-groove nozzles, is also experimentally confirmed as a reasonable device for uniform coating of Fecralloy nano-colloid on a large area substrate.

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References

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