Tracer studies of anodic films formed on aluminium in malonic and oxalic acids

被引:58
作者
Garcia-Vergara, S. J. [1 ]
Skeldon, P. [1 ]
Thompson, G. E. [1 ]
Habakaki, H. [2 ]
机构
[1] Univ Manchester, Sch Mat, Ctr Corros & Protect, Manchester M60 1QD, Lancs, England
[2] Hokkaido Univ, Grad Sch Engn, Sapporo, Hokkaido 0608628, Japan
基金
英国工程与自然科学研究理事会;
关键词
aluminium; anodizing; anodic films; malonic acid; oxalic acid;
D O I
10.1016/j.apsusc.2007.07.006
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Using a tungsten-containing layer, incorporated into sputtering-deposited aluminium, as a tracer, the growth of porous anodic films in malonic and oxalic acid electrolytes has been investigated using transmission electron microscopy, Rutherford backscattering spectroscopy and nuclear reaction analysis. Comparisons were also made with films formed in phosphoric acid electrolyte, which have been studied previously. The findings reveal a distortion of the tracer layer within the barrier region of the porous films, evident as a lagging of the tracer beneath the pores relative to that in the adjacent cell wall region. Further, the films are significantly thicker than the layer of metal consumed during anodizing and display smooth-sided pores. The anodizing behaviours are consistent with a major role for field-assisted flow of film material within the barrier layer in the development of the pores. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:1534 / 1542
页数:9
相关论文
共 35 条
[21]  
Nielsch K, 2002, NANO LETT, V2, P677, DOI [10.1021/nl025537k, 10.1021/n1025537k]
[22]   Self-ordering of anodic porous alumina formed in organic acid electrolytes [J].
Ono, S ;
Saito, M ;
Asoh, H .
ELECTROCHIMICA ACTA, 2005, 51 (05) :827-833
[23]   MORPHOLOGY AND MECHANISM OF FORMATION OF POROUS ANODIC FILMS ON ALUMINIUM [J].
OSULLIVAN, JP ;
WOOD, GC .
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1970, 317 (1531) :511-+
[24]   Porous anodic film formation on an Al-3.5 wt % Cu alloy [J].
Paez, MA ;
Bustos, O ;
Thompson, GE ;
Skeldon, P ;
Shimizu, K ;
Wood, GC .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (03) :1015-1020
[26]   THE ANODIC-OXIDATION OF SUPERIMPOSED METALLIC LAYERS - THEORY [J].
PRINGLE, JPS .
ELECTROCHIMICA ACTA, 1980, 25 (11) :1423-1437
[27]   Anomalously low levels of anion incorporation into anodic oxide films on tungsten [J].
Shimizu, K ;
Brown, GM ;
Habazaki, H ;
Kobayashi, K ;
Skeldon, P ;
Thompson, GE ;
Wood, GC .
CORROSION SCIENCE, 1998, 40 (07) :1229-1238
[28]   O-18 STUDY OF FIELD-ASSISTED PORE FORMATION IN COMPACT ANODIC OXIDE-FILMS ON ALUMINUM [J].
SIEJKA, J ;
ORTEGA, C .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1977, 124 (06) :883-891
[29]   A tracer study of porous anodic alumina [J].
Skeldon, P. ;
Thompson, G. E. ;
Garcia-Vergara, S. J. ;
Iglesias-Rubianes, L. ;
Blanco-Pinzon, C. E. .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (11) :B47-B51
[30]   INCORPORATION OF TUNGSTEN AND MOLYBDENUM INTO ANODIC ALUMINA FILMS [J].
SKELDON, P ;
SKELDON, M ;
THOMPSON, GE ;
WOOD, GC .
PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1989, 60 (04) :513-521