碳纳米管/铅锡复合镀层的腐蚀特征
Corrosion Resistance of Carbon Nanotube/Pb-Sn Alloy Composite Coating
摘 要
用复合电沉积方法在黄铜片上制备了碳纳米管/铅锡合金新型减摩复合镀层,对铅锡镀层和碳纳米管/铅锡复合镀层在3.0%(质量分数,下同) HCl、10% NaOH和3.5% NaCl溶液中的极化曲线和电化学阻抗进行了研究.结果表明,碳纳米管/铅锡复合镀层在以上三种介质中的腐蚀电位均有提高,其中,在3.5% NaCl溶液中提高明显,从-0.592 V(SCE)上升到-0.535 V(SCE);复合镀层有更高的电化学阻抗.碳纳米管的添加能提高铅锡镀层的耐蚀性能.
碳纳米管
抗蚀性能
电化学阻抗谱
composite coating
carbon nanotube
corrosion resistance
electrochemical impedance spectroscopy
Abstract
A carbon nanotube/Pb-Sn alloy new anti-friction composite coating was prepared on a brass sheet by electro-deposition technology.The polarization curves and electrochemical impedance spectroscopy of the Pb-Sn coating and carbon nanotube/Pb-Sn composite coating were tested in 3.0% HCl,10% NaOH and 3.5% NaCl solutions.The results showed that the corrosion potential of the carbon nanotube/Pb-Sn composite coating increased in the three kinds of corrosion media,especially in 3.5% NaCl solution,it increased from -0.592 V(SCE) to -0.535 V(SCE).In addition,the composite coating had higher electrochemical impedance.Carbon nanotubes can improve the corrosion resistance of Pb-Sn plating coatings.
中图分类号 TG174.44
所属栏目 试验研究
基金项目 国家自然科学基金项目(50775041);广东省自然科学基金项目(05001804);广东省科技计划项目(2008B010400029)
收稿日期 2009/12/7
修改稿日期 2009/12/20
网络出版日期
作者单位点击查看
备注胡正西,讲师.
引用该论文: HU Zheng-xi,JIE Xiao-hua,LU Guo-hui. Corrosion Resistance of Carbon Nanotube/Pb-Sn Alloy Composite Coating[J]. Corrosion & Protection, 2010, 31(10): 745～748
被引情况:
【1】于佃荣,江强,周细应, "溅射气压对Al-Sn-Cu涂层电化学性能的影响",腐蚀与防护 33, 952-954(2012)
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