Sol－gel法制取Al_2O_3系陶瓷涂层的研究  

STUDY OF SOL-GEL DERIVED CERAMIC COATING OF ALUMNUM OSIDE GRUPE

作　　者：魏续占[1] 田宝辉[1] 王流火[1] 刘彦庆[1] 何培之[1] 

机构地区：[1]西安地质学院应化系,北京航空航天大学,西安交通大学化工系

出　　处：《西安地质学院学报》1995年第4期87-91,共5页

摘　　要：本文研究了用溶胶－凝胶（Ｓｏｌ－ｇｅｌ）法制备Ａｌ２Ｏ３系陶瓷涂层的工艺过程和反应原理，阐述了溶胶制备，涂层工艺及其影响因素等问题，结果表明，涂层的性质与溶胶的性质、溶胶与基层的润湿性认及徐覆工艺有关。Ａｌ（ＯＨ）３溶胶的粘度应控制在２４～４６ｃｐ，烧结加热速率不易高于１℃／ｍｉｎ；选用添加剂和多次涂覆技术等可以增加涂层厚度。Process and mechanisms of making cerasic coating of Aluminum Oxide group by sol-gel method wasstudied. Some descriptions were gaven for the method of making solution,the factors of influencing the qualityand the process of the coating by sol-gel method. The results showed the quality of coating was conected withthe characteristic of the Al (OH)3,the coherence between solution and metall surface and the coating process.The viscosity of the solution should be in 24-46 cp range and the heating rate of the solidified coating shouldbe less than 1℃/min. The thickness of the coating can be enhanced by muticoating method and adding otherelements etc.

关 键 词：SOL-GEL法 涂层制备 氧化铝 金属材料 

分 类 号：TG174.453[金属学及工艺—金属表面处理]