文献类型：会议论文

英文题名：Effect of mechanical attrition on anodizing of DC-etched aluminum foil for electrolytic capacitor

作者：Zhu, S. Q.[1];Ban, C. L.[2];Jiang, L. J.[3]

第一作者：Zhu, S. Q.

通讯作者：Ban, CL[1]

机构：[1]Liaocheng Univ, Sch Comp Sci, Liaocheng 252059, Peoples R China;[2]Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Peoples R China;[3]Xinxiang Univ, Coll Phys & Elect Engn, Xinxiang 453003, Peoples R China

第一机构：Liaocheng Univ, Sch Comp Sci, Liaocheng 252059, Peoples R China

通讯机构：[1]corresponding author), Liaocheng Univ, Sch Mat Sci & Engn, Liaocheng 252059, Peoples R China.

会议论文集：2nd International Symposium on Renewable Energy and Sustainability (ISRES)

会议日期：MAR 20-22, 2013

会议地点：Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco, MEXICO

主办单位：Univ Nacl Autonoma Mexico, Inst Energias Renovables

语种：英文

摘要：On tunnel-etched aluminum foil for electrolytic capacitor, the barrier dielectric film, gamma-Al2O3, was formed by a mechanical attrition enhanced anodizing process. The anodizing was conducted in a traditional boric acid solution and the mechanical attrition (MA) action was applied by impact of nano-sized alpha-Al2O3 particles on the sample surface with a special vibrating frequency. The surface morphology of anodized foil was observed with SEM. The morphology and microstructure of the anodized oxide were examined by SEM, TEM and XRD. The capacitance and withstanding voltage of the oxide film were also determined with LCR meter and small-current charging. The results show that MA has significant effects on the microstructure and performance of Al anodic film. The MA-assisted barrier film becomes thinner, more crystallized but with less structure defects than the traditional one without MA, leading to increase in the film capacitance and withstanding voltage.