Thick and hard anodized aluminum film with large pores for surface composites
Thick and hard anodized aluminum film with large pores for surface composites作者机构：State Key Laboratory of Metal Matrix Composites Shanghai Jiaotong UniversityShanghai 200030 China State Key Laboratory of Metal Matrix Composites Shanghai Jiaotong UniversityShanghai 200030 China
出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)
年 卷 期：2004年第14卷第z1期
页 面：166-169页
核心收录：
学科分类：080503[工学-材料加工工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）]
基 金：the Nana-tech Special Foundation of Shangshai Scientific and Technical Committee(0352nm034)
主 题：anodization organic carboxylic acid Ce salt thickness hardness large pores
摘 要：Al-base surface self-lubricating composites need thick and hard alumina membranes with large pores to add lubricants easily. This kind of porous alumina layer was fabricated in additive-containing, phosphoric acid-based solution. The effects of additive containing organic carboxylic acid and Ce salt on the properties of the oxide film and mechanism were investigated in detail with SEM and EDAX analyses. The results show that the pore diameter is about 100 nm, the film thickness increases by 4 -5 times, and the Vickers hardness improves by about 50% through adding some amount of organic carboxylic acid and Ce salt. Such an improvement in properties is explained in terms of a lower film dissolving velocity and better film quality in compound solution.
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