班朝磊,何业东,邵鑫,王长征,杜鹃

• 1:聊城大学材料科学与工程学院
• 2:北京科技大学北京市腐蚀磨蚀与表面技术重点实验室

摘要(Abstract)：

将高压铝电解电容器用腐蚀铝箔分别在硼酸溶液、硼酸+微量苯甲酸、硼酸+微量柠檬酸和硼酸+微量酒石酸溶液中进行阳极氧化制得耐压薄膜;应用透射电镜(TEM)对比研究了硼酸液中添加上述微量有机酸前后所形成阳极氧化膜的厚度与微观结构,应用大功率X-射线衍射(XRD)仪分析了氧化膜的结晶程度,应用LCR数字电桥和小电流充电测试了氧化膜的比电容和耐压值。结果表明:硼酸溶液中微量有机酸的添加有利于促进高结晶度阳极氧化膜的形成;随着溶液酸性的增强,氧化膜晶粒平均尺寸逐渐增大、形成常数降低、获得高比电容值;同时氧化膜相变收缩加剧、内应力增大、氧化膜内部缝隙微观缺陷密度增大,导致氧化膜耐电压值降低。

关键词(KeyWords)： 阳极氧化;铝箔;电解电容器;有机酸;微观组织

Abstract:

Keywords:

基金项目(Foundation): 北京地区高等学校新材料学科群建设项目;; 聊城大学博士科研启动资金(31805)

作者(Author): 班朝磊,何业东,邵鑫,王长征,杜鹃

DOI: 10.13289/j.issn.1009-6264.2012.12.026

参考文献(References)：

• [1]蹇雄,张新明,唐建国,等.不同均匀化制度对3003阴极箔比电容的影响[J].材料热处理学报,2005,26(2):39-42.JIAN Xiong,ZHANG Xin-ming,TANG Jian-guo,et al.Effect of different homogenization treatment on specific capacitance of 3003 aluminum alloy[J].Transactions of Materials and Heat Treatment,2005,26(2):39-42.
• [2]吕亚平,毛卫民,何业东,等.退火工艺对低压铝箔氧化膜和比电容的影响[J].材料热处理学报,2007,28(5):78-81.LV Ya-ping,MAO Wei-min,HE Ye-dong,et al.Effect of annealing technology on oxide film and specific capacity of aluminum foils for low voltageelectrolytic capacitors[J].Transactions of Materials and Heat Treatment,2007,28(5):78-81.
• [3]班朝磊,何业东.腐蚀铝箔高压阳极氧化膜微观结构与电化学特征[J].材料热处理学报,2010,31(6):112-115.BAN Chao-lei,HE Ye-dong.Microstructure and electrochemical characteristics of aluminum anodic oxide film formed on etched Al foil[J].Transactions of Materials and Heat Treatment,2010,31(6):112-115.
• [4]宋婧波,毛卫民,杨宏,等.微量Sn对高压阳极铝箔再结晶织构的影响[J].金属热处理,2007,32(7):1-4.SONG Jing-bo,MAO Wei-min,YANG Hong,et al.Influence of micro-additive Sn on recrystallization texture of high voltage anode aluminum foil[J].Heat Treatment of Metals,2007,32(7):1-4.
• [5]陈义庆,何业东,张巍.预热处理和纳米氧化铝膜对低压铝箔化成比电容的影响[J].金属热处理,2005,30(9):42-44.CHEN Yi-qing,HE Ye-dong,ZHANG Wei.Influence of pre-heat treatment and nano-alumina films on the specific capacity of Al foil for low voltagecapacitor heat treatment of metals[J].Heat Treatment of Metals,2005,30(9):42-44.
• [6]班朝磊,何业东.高压电子铝箔阳极电解扩孔行为[J].中国有色金属学报,2008,18(12):2190-2195.BAN Chao-lei,HE Ye-dong.Behavior of increasing diameter of tunnels on high voltage Al foil by anodic electrolysis[J].The Chinese Journal ofNonferrous Metals,2008,18(12):2190-2195.
• [7]丁甲,夏英杰,冯哲圣.铝电解电容器用高比容阳极箔制备技术进展[J].电子元件与材料,2009,28(8):82-85.DING Jia,XIAYing-jie,FENG Zhe-sheng.Progress in preparing anode aluminum foils of high specific capacitance for electrolytic capacitors[J].Electronic Components and Materials,2009,28(8):82-85.
• [8]DU Xian-feng,Xu You-long.Formation of Al2O3-BaTiO3 composite thin film to increase the specific capacitance of aluminum electrolytic capacitor[J].Thin Solid Films,2008,516(23):8436-8440.
• [9]Keiji W,Masatoshi S,Hideaki T,et al.Anodizing of aluminum coated with silicon oxide by a sol-gel method[J].Journal of the ElectrochemicalSociety,2001,148(11):473-481.
• [10]Uchi H,Kanno T,Alwitt R S.Structural features of crystalline anodic alumina films[J].Journal of the Electrochemical Society,2001,148(1):B17-B23.
• [11]Chang J K,Liao C M,Chen C H,et al.Microstructure and electrochemical characteristics of aluminum anodized film formed in ammonium adipatesolution[J].Journal of the Electrochemical Society,2003,150(6):B266-B272.
• [12]Jeng K C,Chi M L,Chih H C,et al.Effect of Heat-pretreatment on characteristics of aluminum anodized film formed in ammonium adipate solution[J].Journal of the Electrochemical Society,2004,151(3):B188-B194.
• [13]班朝磊,何业东,邵鑫.热处理对铝箔高压阳极氧化膜结构与电化学特征的影响[J].材料热处理学报,2011,32(10):137-140.BAN Chao-lei,HE Ye-dong,SHA Xin.Effect of heat treatment on microstructure and electrochemical characteristics of anodized alumina film formedon Al Foils[J].Transactions of Materials and Heat Treatment,2011,32(10):137-140.
• [14]BAN Chao-lei,HE Ye-dong.Effect of citric acid on microstructure and electrochemical characteristics of high voltage anodized alumina film formed onetched Al Foils[J].Transactions of Nonferrous Metals Society of China,2011,21(1):133-138.
• [15]BAN Chao-lei,HE Ye-dong.Mechanism on controlling limiting length of tunnels on Al foil electroetched in HCl-H2 SO4[J].Transactions ofNonferrous Metals Society of China,2009,19(3):601-605.

文章评论(Comment)：