Volume expansion factor and growth efficiency of anodic alumina formed in sulphuric acid

F. Zhou; A. K. Mohamed Al-Zenati; A. Baron-Wiecheć; M. Curioni; S. J. Garcia-Vergara; H. Habazaki; P. Skeldon; G. E. Thompson

doi:10.1149/1.3578028

Volume expansion factor and growth efficiency of anodic alumina formed in sulphuric acid

F. Zhou^*, A. K. Mohamed Al-Zenati, A. Baron-Wiecheć, M. Curioni, S. J. Garcia-Vergara, H. Habazaki, P. Skeldon, G. E. Thompson

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

The growth of anodic alumina in sulphuric acid is investigated at constant current on bulk and sputtering-deposited aluminium. The ratio of the thickness of the film to the thickness of oxidized aluminium is shown to increase with increase of the current density (from 0.5 to 50 mA cm^-2) and with decrease of the electrolyte temperature (from 20 to 0°C). In addition, the sulphur content of the films and the efficiency of film formation increase. It is suggested that pores are generated primarily by dissolution at current densities below ∼2 mA cm^-2, with flow of film material dominating at higher current densities.

Original language	English
Pages (from-to)	C202-C214
Journal	Journal of the Electrochemical Society
Volume	158
Issue number	6
DOIs	https://doi.org/10.1149/1.3578028
State	Published - 2011
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1149/1.3578028

Cite this

@article{28f68d4df25347eba1fa1c7a67b7872d,

title = "Volume expansion factor and growth efficiency of anodic alumina formed in sulphuric acid",

abstract = "The growth of anodic alumina in sulphuric acid is investigated at constant current on bulk and sputtering-deposited aluminium. The ratio of the thickness of the film to the thickness of oxidized aluminium is shown to increase with increase of the current density (from 0.5 to 50 mA cm-2) and with decrease of the electrolyte temperature (from 20 to 0°C). In addition, the sulphur content of the films and the efficiency of film formation increase. It is suggested that pores are generated primarily by dissolution at current densities below ∼2 mA cm-2, with flow of film material dominating at higher current densities.",

author = "F. Zhou and {Mohamed Al-Zenati}, {A. K.} and A. Baron-Wieche{\'c} and M. Curioni and Garcia-Vergara, {S. J.} and H. Habazaki and P. Skeldon and Thompson, {G. E.}",

year = "2011",

doi = "10.1149/1.3578028",

language = "英语",

volume = "158",

pages = "C202--C214",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

publisher = "Electrochemical Society, Inc.",

number = "6",

}

TY - JOUR

T1 - Volume expansion factor and growth efficiency of anodic alumina formed in sulphuric acid

AU - Zhou, F.

AU - Mohamed Al-Zenati, A. K.

AU - Baron-Wiecheć, A.

AU - Curioni, M.

AU - Garcia-Vergara, S. J.

AU - Habazaki, H.

AU - Skeldon, P.

AU - Thompson, G. E.

PY - 2011

Y1 - 2011

N2 - The growth of anodic alumina in sulphuric acid is investigated at constant current on bulk and sputtering-deposited aluminium. The ratio of the thickness of the film to the thickness of oxidized aluminium is shown to increase with increase of the current density (from 0.5 to 50 mA cm-2) and with decrease of the electrolyte temperature (from 20 to 0°C). In addition, the sulphur content of the films and the efficiency of film formation increase. It is suggested that pores are generated primarily by dissolution at current densities below ∼2 mA cm-2, with flow of film material dominating at higher current densities.

AB - The growth of anodic alumina in sulphuric acid is investigated at constant current on bulk and sputtering-deposited aluminium. The ratio of the thickness of the film to the thickness of oxidized aluminium is shown to increase with increase of the current density (from 0.5 to 50 mA cm-2) and with decrease of the electrolyte temperature (from 20 to 0°C). In addition, the sulphur content of the films and the efficiency of film formation increase. It is suggested that pores are generated primarily by dissolution at current densities below ∼2 mA cm-2, with flow of film material dominating at higher current densities.

UR - http://www.scopus.com/inward/record.url?scp=79955548215&partnerID=8YFLogxK

U2 - 10.1149/1.3578028

DO - 10.1149/1.3578028

M3 - 文章

AN - SCOPUS:79955548215

SN - 0013-4651

VL - 158

SP - C202-C214

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 6

ER -

Volume expansion factor and growth efficiency of anodic alumina formed in sulphuric acid

Abstract

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this