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  • 09월 12일 17시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제110회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Fabrication of Graphene Layer for Oxidation Protective Coating on IF Steel by Chemical Vapor Deposition

2012년 8월 30일 15시 52분 57초
MAT.P-1355 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
10월 17일 (수요일) 16:00~19:00
저자 및
박재현, 김태훈, 박종래
서울대학교 재료공학부, Korea
Due to the chemical reactivity of the refined metals, US industries spend more than $200 billion annually on the protective coatings on metals. For the protective coatings, various approaches are conducted including coating of an inert metal, conductive polymers, organic layers, paints, oxide layers etc. However, most conventional methods have their limitations. The addition of protective coating usually changes physical and optical properties of the metals. As a result, an ultrathin protective coating is required for the minimal changes of properties of metals. Graphene is a single atomic monolayer of graphite and one of the most ideal materials for this purpose because of chemical inertness, thermal stability and transparency. Furthermore, growth of graphene on several metal substrates including Fe, Ni, Cu, etc. by chemical vapor deposition (CVD) has been successfully researched from many researchers. Recently, ability of graphene coating for protecting metals from corrosion has been researched on Ni and Cu in some research groups. In this research, for the first time, we researched about the oxidation protecting ability of the graphene coating on Fe. We grew graphene layers on IF (Interstitial Free) steel by CVD process. We put IF steel into the furnace and supplied acetylene gas with hydrogen in high temperature (800℃) and atmospheric condition. Properties of graphene layers are examined by Raman spectroscopy, SEM, and TEM. To observe the protection ability of graphene coating on IF steel, we compared the Raman and XPS results of coated and non-coated IF steel which are exposed to the highly oxidative environment. Also, in this research, mechanical and structural property changes of IF steel after CVD process were measured by tensile strength test and XRD.