(1. 北京航空航天大学 工程训练中心， 北京 100083;
2. 北京科技大学 腐蚀与防护中心， 北京 100083)
摘 要: 采用料浆法渗Zn、 溶胶-凝胶法沉积SiO2制备Zn-SiO2复合涂层。 采用EDS、 SEM、 XRD等方法分析了涂渗层的成分、 结构与组织， 采用增量法研究了渗Zn试样和Zn-SiO2复合涂层试样的抗高温氧化性能。结果表明， Zn-SiO2复合涂层将渗Zn层的抗氧化性能提高了3倍以上。
关键字: 料浆渗Zn； Zn-SiO2复合涂层； 抗氧化性能
to resist oxidation
（1. Training Center of Engineering,
Beijing University of Aeronautics and Astronautics，Beijing 100083， China；
2. Corrosion and Protection Center,
University of Science and Technology Beijing,Beijing 100083， China）
Abstract:Zn-SiO2 composite coating was prepared by sherardizing with slurry and depositing SiO2 by sol-gel method. The composition, microstructure and phases of coatings were analyzed by EDS, SEM and XRD. The oxidation properties of slurry sherardizing coating and Zn-SiO2 composite coating were studied by a mass-gain method.It is shown that Zn-SiO2 composite coating can enhance the oxidation resistance of sherardizing coating more than three times.
Key words: slurry sherardizing; Zn-SiO2 composite coating; oxidation resistance
