镁合金热化学反应法Al_2O_3基纳米陶瓷涂层的耐蚀性能研究  

Study of Properties of Nanometer Ceramics Coatings Based Al_2O_3 by Thermo Chemical Reaction on Magnesium Alloy

作　　者：马壮[1] 吕文涛[1] 时海芳[1] 李智超[1] 

机构地区：[1]辽宁工程技术大学材料系,辽宁阜新123000

出　　处：《新技术新工艺》2008年第4期83-85,共3页New Technology & New Process

基　　金：辽宁省自然科学基金资助项目(20062203)

摘　　要：介绍了采用热化学反应法在MB2镁合金表面制备纳米陶瓷涂层,主要研究了涂层的耐蚀性,采用XRD分析其相结构,并测试涂层耐热冲击性,结果表明,该涂层的耐酸性及耐盐性相对于基体提高了13.4及13.7倍,耐热冲击性达30次以上,且涂层中有新相MgMnSiO4,Al2SiO5,Mg2SiO4和ZnAl2O4生成。In this paper, the nanometer ceramics coatings based Al2O3 by using thermo chemical reaction on the surface of MB2 magnesium alloy are prepared. The corrosion resistance is primarily studied. The phase structure of coatings is analyzed by XRD and thermal shock resistance is tested. At last, the results indicate that the acid fastness and saline tolerance can enhance 13.4 and 13.7 times. The thermal shock resistance of coatings can reach to 30 times. The new phases such as MgMnSiO4, Al2SiO5, Mg2SiO4 and ZnAl2O4 are found in coatings.

关 键 词：镁合金 热化学反应法 耐蚀性 

分 类 号：TQ174[化学工程—陶瓷工业]