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=0.5, the conversion of CO is about 68% at 530 ℃. Potassium can greatly improve the low temperature activity, but slightly reduces the high temperature activity, and has little impact on the thermal stability. La0.5Ce0.5FeO3 (.K) is a promising chromium-free high temperature shift catalyst. Key words:catalytic chemistry; perovskite compounds; chromium-free high-temperature shift catalyst; rare......
Fluoride Conversion Coating on Biodegradable AZ31B Magnesium AlloyTingting Yan1,2,Lili Tan2,Bingchun Zhang2,Ke Yang21. Faculty of Materials Science and Engineering,Kunming University of Science and Technology2. Institute of Metal Research,Chinese Academic of Sciences摘 要:A fluoride conversion coating was successfully prepared on AZ31 B magnesium alloy......
to magnesium [J]. Corrosion Science, 2000, 42: 275-288. [8] Dabala M, Brunelli K, Enrico N, Maurizio M. Cerium chemical conversion coatings on AZ63 magnesium alloy [J]. Surface Coating Technology, 2003.... An environmentally compliant cerium conversion coating for aluminum protection [D]. Rolla: University of Missouri-Rolla, 1998. [12] Song G, Atrens A, Stjohn D, Nairn J, Li Y. The electrochemical......
Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, China) Abstract: A brown-yellow conversion coating was obtained on the surface of AZ31 magnesium alloy in molybdate solution..., respectively. Potentiodynamic polarization analysis was used to study the corrosion resistance of the coating. The results show that the conversion coatings consist of spherical particles and the thickness......
Improving Corrosion Resistance of Cf/Mg Composites using Rare Earth Conversion Coatings Wang Chunyu1,Song Meihui1,Wu Gaohui1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China) Abstract:The surface of carbon fiber reinforced Mg matrix (Cf/Mg) composites was modified by treatment of rare earth conversion coating, and nontoxic, non-pollution Ce......
Electrochemical behaviors of magnesium alloy with phosphate conversion coating in NaCl solutionsLi-Hua Fu1,2,Chao-Fang Dong1,Xiao-Gang Li1,Wei Han21. Corrosion and Protection Center,Key Laboratory...="ChDivSummary">A composite conversion coating was prepared on magnesmm alloy by the only one-step immersion treatment.The characteristics of the conversion coating were investigated by scanning electron......
Study on lanthanum salt conversion coating modified with citric acid on hot dip galvanized steel孔纲,刘玲艳,卢锦堂,车淳山,钟正School of Materials Science and Engineering,South China University of Technology摘 要... results showed that the corrosion resistance of the lanthanum salt conversion coating modified with citric acid on hot dip galvanized steel was superior to that of common lanthanum salt conversion......
Study on lanthanum salt conversion coating modified with citric acid on hot dip galvanized steel孔纲,刘玲艳,卢锦堂,车淳山,钟正School of Materials Science and Engineering,South China University of Technology摘 要... results showed that the corrosion resistance of the lanthanum salt conversion coating modified with citric acid on hot dip galvanized steel was superior to that of common lanthanum salt conversion......
, JIANG Qing. An organic chromium-free conversion coating on AZ91D magnesium alloy [J]. Applied Surface Science, 2008, 255(5): 2322-2328. [13] LI Jiu-qing, GAO Lu-sheng, LU Cui-ying, LUO Bing-zhu... Preparation of cerium oxide based environment-friendly chemical conversion coating on magnesium alloy with additives CHEN Dong-chu1, 2, WU Jian-feng3, LIANG Yi-qing4, YE Shu-lin3, LI Wen-fang2 1......
Institute of Technology, Harbin 150001, China) Abstract:The feasibility of forming pollution-free and environmentally benign Ce-based rare earth conversion coatings (short for RECCs) on AZ91... of coating formation were discussed. Protective performance of conversion coatings on magnesium alloy was evaluated by moisture/heating test, anodic polarization, etc. The results show that Ce-based RECCs......
