青铜表面膜的红外光谱和原子力显微镜分析  

Analysis on the film of ACN formed on bronze by FTIR and AFM

作　　者：朱一帆[1] 付海涛[1] 李瑛[2] 魏无际[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009 [2]中国科学院金属研究所金属腐蚀与防护国家重点实验室,辽宁沈阳110015

出　　处：《南京工业大学学报（自然科学版）》2004年第4期49-52,共4页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏省自然科学基金资助(BK97122);金属腐蚀与防护国家重点实验室基金资助(1999-05)

摘　　要：用红外反射光谱(FTIR)研究青铜在含有AMT的ACN水溶液(pH=2 2)中形成的膜,发现在青铜表面上只形成Cu(I)AMT络合物膜。并用原子力显微镜(AFM)观察其膜的微观形貌,结果表明:膜是致密平整的,且膜厚约为10nm左右,是非电子导体膜。The protection films formed on the bronze treated by ACN, which consist of AMT and organic acid, were studied by using the methods of Fourier transform infrared (FTIR) and atomic force microscope (AFM). FTIR was used to characterize the film on bronze surface. Results showed that the film on bronze surface treated by AMT and ACN consists of Cu(Ⅰ)AMT. In the AMT solution, AMT reacted with little Cu(Ⅰ) and the film was not intact, appearing conductive. The surface film on bronze treated by ACN only consist of Cu(Ⅰ)AMT, so it was intact and nonconductive. For the first time, atomic force microscope (AFM) was used to study the surface film on the bronze treated by ACN. The microstructure characteristics of the film were known through AFM analysis as that the protection films consist of nano-grain 100 nm in diameter, with 10 nm thick layers and not order arranged on the bronze surface. The anti-corrosion efficiency of ACN films is better than AMT films.

关 键 词：青铜表面膜 红外光谱 原子力显微镜 2-氨基-5-巯基-1 3 4-噻二唑 隧道扫描显微镜 

分 类 号：TG174.46[金属学及工艺—金属表面处理]