采用溶胶-凝胶法,在玻璃表面制备TiO2薄膜,利用气流挟沙喷射法对涂膜玻璃进行冲蚀实验,采用扫描电镜(SEM)研究了TiO2薄膜在风沙环境下的冲蚀磨损特性、冲蚀行为和侵蚀机理.研究结果表明:TiO2薄膜磨损量随着冲蚀速度和沙剂量的增加而增加;其侵蚀机理为:在低角度冲蚀下,薄膜主要受到微切削作用下产生的划痕损伤,而在高角度冲蚀下,主要受到冲蚀挤压变形作用下产生的薄膜破损.同时TiO2薄膜不仅强度高而且脆性强,其在高角度冲蚀下的磨损更为严重..
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