화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Materials Research, Vol.21, No.1, 8-14, January, 2011
DOI10.3740/MRSK.2011.21.1.008  Export Citation
폴리페닐카보실란을 이용한 SiOC가 코팅된 스테인리스스틸 제조 및 이의 내부식성 특징
SiOC Coating on Stainless Steel Using Polyphenylcarbosilane, and Its Anti-corrosion Properties
김종일, 이윤주, 김수룡, 김영희†, 김정일1, 우창현1, 최두진2
  • 한국세라믹기술원 에너지소재센터
  • 1주식회사 티씨케이
  • 2연세대학교 신소재공학과
Jong Il Kim, Yoon Joo Lee, Soo-Ryong Kim, Young-Hee Kim†, Jung Il Kim1, Chang Hyn Woo1, and Doo Jin Choi2
  • Department of Green-Ceramics, Korea Institute of Ceramic Engineering and Technology(KICET), Korea
  • 1Tokai Carbon Korea Co., Ltd., Korea
  • 2Department of Materials Science and Engineering, Yonsei University, Korea
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To improve the chemical stability of metal, the ceramic coatings on metallic materials have attracted interest from many researchers due to the chemical inertness of ceramic materials. To endure strong acids, SiOC coating on metal substrate was carried out by dip coating method using 20wt% polyphenylcarbosilane solution; SiC powder was added to the solution at 10wt% and 15wt% to improve the mechanical properties and to prevent cracks of the film. Thermal oxidation as a curing step was carried out at 200oC for crosslinking of the polyphenylcarbosilane, and the coating samples were pyrolysized at 800oC under argon to convert the polyphenylcarbosilane to SiOC film. The thicknesses of the SiOC coating films were 2.36 μm and 3.16 μm. The quantities of each element were measured as SiO1.07C6.33 by EPMA, and it can be confirmed that the SiOC film from polyphenylcarbosilane was formed in a manner that was carbon rich. The hardness of the SiOC film was found to be 3.2Gpa through nanoindentor measurement. No defect including cracks appeared in the SiOC film. The weight loss of the SiOC coated stainless steel was within 2% after soaking in 10% HCl solution at 80oC for one week. From these results, SiOC coating shows good potential for application to protect against severe chemical corrosion of stainless steel.
Keywords:SiOC;polyphenylcarbosilane;silicon carbide powder;coating;corrosion resistant;anti-corrosion
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