【摘要】 研究了溶胶制备中所用催化剂种类、基体金属前处理及涂层厚度对用溶胶 凝胶法制得的陶瓷涂层耐蚀性能的影响 ,探讨获得最佳耐蚀性能的陶瓷涂层厚度所需的溶胶粘度及提拉速度范围。对不锈钢基体上SiO2 、ZrO2 、TiO2 、Al2 O3、SiO2 TiO2 陶瓷涂层 ,采用多种电化学及化学评价方法 ,在不同腐蚀介质中就不同组合试样的耐酸蚀、抗点蚀和抗氧化性能等作了比较。结果表明在不锈钢上采用溶胶 凝胶浸渍提拉法制得连续而致密的陶瓷涂层可有效保护基体金属更多还原

【Abstract】 The effect of sol preparation with different catalysts, substrate pretreatment and coatings thickness on corrosion resistance of sol gel ceramic coatings was studied. The range of sol viscosity and the withdrawal speed for preparing the necessary ceramic coating thickness which could bring optimum corrosion resistance was also explored.By comparing the acid resistance, pitting resistance and oxidation resistance in different corrosive media with various standard electrochemical and chemical corrosion evaluation methods for different assembly samples, including SiO 2、ZrO 2、TiO 2、Al 2O 3、SiO 2 TiO 2 ceramic coatings on stainless steel substrate, it could be concluded that the contineous and dense ceramic coating on stainless steel prepared with sol gel dipping withdrawal method could provide effective protection.更多还原