A study on the self-sealing process of anodic films on aluminum by EIS

被引：74
|
作者：
Zhao, Xu-hui [1 ]
Zuo, Yu [1 ]
Zhao, Jing-mao [1 ]
Xiong, Jin-ping [1 ]
Tang, Yu-ming [1 ]
机构：
[1] Beijing Univ Chem Technol, Fac Mat Sci & Engn, Beijing 100029, Peoples R China
来源：
SURFACE & COATINGS TECHNOLOGY | 2006年 / 200卷 / 24期
关键词：
anodic film; aluminum; self-sealing; EIS; corrosion;
D O I：
10.1016/j.surfcoat.2005.10.031
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The electrochemical behaviors of anodized aluminum in neutral NaCl and Na2SO4 solutions were studied using electrochemical impedance spectroscopy (EIS). The results reveal that there is a self-sealing process for unsealed anodic film in neutral NaCl and Na2SO4 solutions. The resistance of the porous layer (R-p) and the capacitance of the barrier layer (CPEb) increase and the capacitance of the porous layer (CPEp) decreases with immersion time in the initial stage. Corrosion resistance provided by the anodic film is improved by the self-sealing process of the porous layer. However, chloride ions have an opposite effect. The improving effect of the self-sealing process on film resistance is decreased with the increase of chloride concentration of the solution. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：6846 / 6853
页数：8
相关论文
共 50 条
  • [21] Self-Sealing Complex Oxide Resonators
    Lee, Martin
    Robin, Martin P.
    Guis, Ruben H.
    Filippozzi, Ulderico
    Shin, Dong Hoon
    van Thiel, Thierry C.
    Paardekooper, Stijn P.
    Renshof, Johannes R.
    van der Zant, Herre S. J.
    Caviglia, Andrea D.
    Verbiest, Gerard J.
    Steeneken, Peter G.
    NANO LETTERS, 2022, 22 (04) : 1475 - 1482
  • [22] SELF-SEALING STRUCTURES FOR MICROMETEOROID PROTECTION
    HEITZ, RM
    SPACE AERONAUTICS, 1967, 48 (01): : 118 - &
  • [23] A SELF-SEALING MODIFICATION OF THE FOLEY CATHETER
    HUTCH, JA
    JOURNAL OF UROLOGY, 1956, 76 (03): : 300 - 300
  • [24] Self-Sealing Composite Sandwich Structures
    Mangun, C. L.
    White, S. R.
    Sottos, N. R.
    Jin, H.
    Moll, J. L.
    PROCEEDINGS OF THE AMERICAN SOCIETY FOR COMPOSITES, 2013,
  • [25] SELF-SEALING INCISION FOR PERIPHERAL IRIDECTOMY
    WEENE, LE
    OPHTHALMIC SURGERY AND LASERS, 1978, 9 (06): : 64 - 66
  • [26] Testing Self-Sealing Properties of Concrete
    Gupta, Rishi
    Biparva, Alireza
    Azarsa, Pejman
    Concrete International, 2019, 41 (01) : 31 - 34
  • [27] EXPERIMENTAL SELF-SEALING PROSTHESIS FOR HEMODIALYSIS
    NEWMAN, MM
    PREDICKI, PK
    NEWKIRK, JB
    TRANSACTIONS AMERICAN SOCIETY FOR ARTIFICIAL INTERNAL ORGANS, 1971, 17 (APR): : 299 - &
  • [28] On the self-sealing nature of marine seeps
    Hovland, M
    CONTINENTAL SHELF RESEARCH, 2002, 22 (16) : 2387 - 2394
  • [29] STUDY OF A SELF-SEALING FLANGE JOINT WITH A FLAT GASKET.
    Sinichenko, G.A.
    1600,
  • [30] Aluminum-polyethylene composite coatings with self-sealing induced anti -corrosion performances
    Wang, Xiaoxia
    Zhao, Hang
    Wu, Songze
    Suo, Xinkun
    Wei, Xicheng
    Li, Hua
    JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2020, 282
12345