摘要
采用热化学反应法分别以Al2O3和SiO2为基质氧化物在850℃下制备陶瓷涂层,通过对陶瓷涂层的物相分析,热震性能测试、致密性以及耐蚀性测试分析比较,确定两种基质氧化物对陶瓷涂层性能影响。结果显示:经热固化后两种涂层均产生了大量新相,增加了涂层的抗热震性能的同时新相本身具有的化学稳定性使涂层的耐酸、碱、盐能力不同程度上提升,但是由于SiO2本身的性质使涂层更致密,因此综合耐蚀性优于Al2O3基陶瓷涂层。
The influences of matrix oxide on the properties of ceramic coating prepared by thermal-chemical reaction method at 850℃ were studied. By testing their XRD, thermal-shock resistance, compactness and corrosion resistance respectively, the conclusion can be drawn that SiO2 matrix ceramic coating shows an excellent set of corrosion-resistance properties, because SiO2 can enable the coatings to be more compact, though both of the coatings produce new phases, which result in a strengthening of thermal-shock resistance.
出处
《热加工工艺》
CSCD
北大核心
2012年第8期156-158,共3页
Hot Working Technology
关键词
热化学反应法
陶瓷涂层
基质氧化物
耐蚀性
thermal-reaction method
ceramic coating
matrix oxide
corrosion resistance
