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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 thermoelectric reaction method was used to prepare ceramic coatings with Al2O3 and SiO2 as matrix oxides respectively at 850 ℃. Through the phase analysis, thermal shock resistance test, compactness and corrosion resistance analysis of ceramic coatings, two Effect of matrix oxides on the properties of ceramic coatings. The results show that both of the two coatings have a large number of new phases after thermal curing, which increases the thermal shock resistance of the coating and at the same time the chemical stability of the new phase makes the coatings resistant to acid, alkali and salt to varying degrees Improve, but due to the nature of SiO2 itself makes the coating more dense, so the overall corrosion resistance is better than Al2O3 ceramic coating.