【作者】 邵艳群； 唐电； 熊惟皓； 张腾； 夏小钟； 欧阳兴；

【Author】 SHAO Yan-qun, TANG Dian, XIONG Wei-hao, ZHANG Teng XIA Xiao-zhong, OUYANG Xing(1. State Key Lab. Die & Mould Technol, Huazhong Univ. Sci. and TechnoL, Wuhan, Hubei 430074, China;2. Institute of Materials Research, Fuzhou University, Fuzhou, Fujian 350002, China; 3. College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350002, China)

【机构】 华中科技大学模具技术国家重点实验室； 福州大学材料研究所； 福州大学材料学院；

【摘要】 研究了溶胶-疑胶浸渍提拉法制备的纳米级TiO₂-SiO₂涂层在碳钢基体上的耐蚀性能。采用XRD,SEM,TEM等技术研究了涂层的相结构及其显微形貌,采用750℃静态氧化实验和6%FeCl₃盐酸腐蚀实验检测了涂层的抗高温氧化能力和耐酸性能,并与不锈钢和镀锌层进行比较,结果表明:涂层在850℃以下均以致密的非晶态结构存在,非晶态涂层的抗高温氧化能力以及耐酸性能优于被比较物,添加合适的添加剂可以提高非晶态向晶态转变的温度,并提高耐蚀性能。更多还原

【Abstract】 Up to now, studies on Ti02, Si02, TiO2-SiO2 have been mainly focused on the fields of optics and microelectronics. Corrosion-resistance of nano-scale TiO2-SiO2 coatings prepared by sol-gel dip-coating on carbon steels was studied in the paper. The phases and their microstructures were investigated by XRD, SEM. Oxidation-resistance tests at static state at 750℃ and acidity-resistance tests in 0.05 mol/L hydrochloric acid containg 6% FeCl3 were carried out and its durability was compared with those of stainless steel and zincification coating. It was showed that compact noncrystalline coating was obtained below 850℃ and its durability was superior to those of stainless steel and zincificatin coating. Appropriate additive can improve its durability.更多还原