溶胶成分对镁合金阳极氧化膜层的影响研究  

The effect of sol ingredient to anodic oxidation film on magnesium alloys

作　　者：朱立群[1] 刘慧丛[1] 

机构地区：[1]北京航空航天大学材料学院103教研室,北京100083

出　　处：《功能材料》2005年第6期923-926,共4页Journal of Functional Materials

基　　金：国家高技术研究发展计划(863计划)资助项目(2003AA305071);航空科学基金资助项目(04H51002)

摘　　要：研究了AZ91D镁合金材料在普通阳极氧化条件下,通过往碱性阳极氧化溶液中加入硅铝溶胶成分(含量为0%～5%),在60～70V的电压条件下进行交流阳极氧化处理,获得的膜层经过厚度测量和表面、断面微观形貌观察表明;溶胶成分在镁合金氧化成膜过程中,可以有效地提高镁合金表面的阳极氧化膜层厚度和膜层的致密程度。同时由于溶液中硅铝溶胶成分的作用,使得阳极氧化成膜速度出现阶段性快速增长和缓慢增长。而溶胶成分的加入对阳极氧化膜层的X射线衍射相结构的影响不大。According to the usual condition for anodic oxidation on AZ91D magnesium alloys,anodic oxidation film was made at the voltage of 60～70V(AC) by dropping silicon-aluminum sol into alkaline anodic oxidation solution,and the rate of added sol to basic solution was 0%～5%.The prepared film was tested by measuring the thickness and observing the microcosmic surface and cross section image,and the results show that the sol ingredient can enhance the thickness of anodic oxidation film effectively and the compact degree of the film on magnesium alloys.At the same time,due to the effect of silicon-aluminum sol, the rate of the forming films has the stage of rapid and slow development.While adding sol into the solution has little effect on X-ray diffractive image of anodic oxidation film.

关 键 词：氧化膜层 镁合金阳极 成分 阳极氧化处理 AZ91D X射线衍射 氧化条件 厚度测量 形貌观察 成膜过程 膜层厚度 成膜速度 铝溶胶 金材料 金表面 阶段性 相结构 溶液 致密 高镁 

分 类 号：TQ153.6[化学工程—电化学工业] TU991.4[建筑科学—市政工程]