Kinetics of formation of complex anodic oxide films on aluminium

被引：17

作者：

Girginov, AA ^{[1
]}

Zahariev, AS ^{[1
]}

Machkova, MS ^{[1
]}

机构：

[1] Univ Chem Technol & Met, Dept Phys Chem, BU-1756 Sofia, Bulgaria

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2002年 / 76卷 / 03期

关键词：

complex alumina films; re-anodization; pore filling;

D O I：

10.1016/S0254-0584(01)00539-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The kinetics of formation of "complex" anodic films on aluminium obtained by an electrochemical filling the porous alumina films in an aqueous borate electrolytic solution has been investigated. Complex anodic oxide films with entirely or partially filled pores depending on the porous matrix thickness were obtained. The slopes of the kinetic curves (partial derivativeU(f)/partial derivativeQ(f)) during a re-anodization as a function of the thickness of porous films formed in H2SO4 and (COOH)(2) are presented. The electric field strength values through the filling porous films were calculated. Three types of equations were used to calculate the ionic current as a function of the electrical field strength. The values of two important kinetic characteristics of the filling process (the electrical charge passed for the whole filling the porous film, and the re-anodization voltage reached at the moment of an entire filling the film) were determined. The values of these characteristics are plotted vs. the thickness of porous alumina films. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：274 / 278

页数：5

共 18 条

[1]

ALTENPOHL D, 1963, METALL, V9, P164

[2]

Andreeva L., 1970, ELEKTROKHIMIYA, V6, P1070

[3] IONIC CURRENT AND FILM GROWTH OF THIN OXIDE LAYERS ON ALUMINIUM [J].

CHARLESBY, A .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B, 1953, 66 (400) :317-329

[4]

DECKER AJ, 1970, J ELECTROCHEM SOC, V117, P440

[5]

DECKER J, 1947, PHILIPS RES REP, V2, P313

[6] IMPROVED DIELECTRIC-PROPERTIES FOR ANODIC ALUMINUM-OXIDE FILMS BY SOFT HARD 2-STEP ELECTROLYTIC ANODIZATION [J].

DICKEY, JR ;

DAVIDSON, JL ;

TZENG, Y .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1989, 136 (06) :1772-1777

[7]

GRIGINOV A, 1990, ELECTROCHIM ACTA, V35, P825

[8] The motion of the ion lattice of insulators under extreme electrical field strengths. [J].

Guentherschulze, A. ;

Betz, Hans .

ZEITSCHRIFT FUR PHYSIK, 1934, 92 (5-6) :367-374

[9] GALVANOLUMINESCENCE DURING THE PORE-FILLING OF ANODIC FILMS ON ALUMINUM FORMED IN SULFURIC-ACID [J].

IKONOPISOV, S ;

GIRGINOV, A ;

MACHKOVA, M .

ELECTROCHIMICA ACTA, 1989, 34 (05) :631-634

[10] PORE FILLING AND ATTENDANT BREAKDOWN OF THICK ANODIC FILMS ON ALUMINUM [J].

MACHKOVA, M ;

KLEIN, E ;

GIRGINOV, A ;

IKONOPISOV, S .

SURFACE TECHNOLOGY, 1984, 22 (01) :21-28

← 1 2 →