摘要
利用不同粗糙度的高纯铝箔在0.3 M草酸中制备阳极氧化铝模板,采用有限元数值分析方法建立二维模型,研究粗糙度对氧化电场的影响。研究表明,随粗糙度由5 nm增大到50 nm,模板孔间距从80 nm减小至70 nm;铝箔表面的显微不平造成了反向电场。粗糙度增大使反向电场增强,膜内的平均电场被削弱,从而使模板孔间距减小。
Anodic alumina template was prepared by using high-purity aluminum foil with different roughness in 0.3 M oxalic acid, and two-dimensional model was established by finite element numerical analysis method to study the influence of roughness on oxidation electric field. The results show that as the roughness increases from 5 nm to 50 nm, the spacing of template holes decreases from 80 nm to 70 nm. Microirregularities on the surface of aluminum foil cause a reverse electric field. The increase of roughness enhances the reverse electric field and weakens the average electric field in the membrane, thus reducing the spacing of template holes.
作者
姜永军
许刚茜
王亚兰
JIANG Yongjun;XU Gangqian;WANG Yalan(School of Mechanical Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《铸造技术》
CAS
2019年第2期147-150,共4页
Foundry Technology
基金
国家自然科学基金(50845065
51562031)
内蒙古自治区自然科学基金(2014MS05162015MS)资助项目
关键词
AAO模板
粗糙度
孔间距
电场
AAO membranes
surface roughness
interpore distances
electric field