Corrosion Science and Technology

  • 제4권1호
  • /
  • Pages.33-38
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  • 2005
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  • 1598-6462(pISSN)
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  • 2288-6524(eISSN)
한국부식방식학회 (The Corrosion Science Society of Korea)
권호 표지

Synthesis of Ceramic Protective Coatings for Chemical Plant Parts Operated in Hi-temperature and Corrosive/Erosive Environment

  • Son, M.C. (Korea Institute of Science and Technology) ;
  • Park, J.R. (Korea Institute of Science and Technology) ;
  • Hong, K.T. (Korea Institute of Science and Technology) ;
  • Seok, H.K. (Korea Institute of Science and Technology)
  • 발행 : 2005.02.01
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초록

Some feasibility studies are conducted to produce an advanced ceramic coating, which reveals superior chemical and mechanical strength, on metal base structure used in chemical plant. This advanced coating on metallic frame can replace ceramic delivery pipe and reaction chamber used in chemical plant, which are operated in hi-temperature and corrosive/erosive environment. An dual spraying is adopted to reduce the residual stress in order to increase the coating thickness and the residual stress is estimated by in-situ manner. Then new methodology is tried to form special coating of yttrium aluminum garnet(YAG), which reveals hi-strength and low-creep rates at hi-temperature, superior anti-corrosion property, hi-stability against Alkali-Vapor corrosion, and so on, on iron base structure. To verify the formation of YAG during thermal spraying, XRD(X ray diffraction) technique was used.

키워드

과제정보

연구 과제 주관 기관 : Ministry of Science & Technology

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