Porous anodic alumina growth in borax electrolyte

A. Baron-Wiechec; P. Skeldon; J. J. Ganem; I. C. Vickridge; G. E. Thompson

doi:10.1149/2.001301jes

Porous anodic alumina growth in borax electrolyte

A. Baron-Wiechec^*, P. Skeldon, J. J. Ganem, I. C. Vickridge, G. E. Thompson

^*Corresponding author for this work

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

6 Scopus citations

Abstract

Ion beam analysis and electron microscopy have been employed to investigate the formation of anodic films on aluminum in a borax electrolyte under potentiostatic conditions. The results indicate the initial growth of a barrier film, containing boron species, followed by growth of boron-free alumina, containing pores. The efficiency of porous film formation is ̃45%, owing to the loss of Al₃⁺ species to the electrolyte. 18O tracer is retained in the film as pores develop, which is suggested to be related to the inward transport of the O₂^- ions in the growing alumina. In contrast, boron species are lost from the film, which is attributed to the field-assisted dissolution of the alumina as pores develop in the boron-containing region.

Original language	English
Pages (from-to)	C583-C589
Journal	Journal of the Electrochemical Society
Volume	159
Issue number	12
DOIs	https://doi.org/10.1149/2.001301jes
State	Published - 2012
Externally published	Yes

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title = "Porous anodic alumina growth in borax electrolyte",

abstract = "Ion beam analysis and electron microscopy have been employed to investigate the formation of anodic films on aluminum in a borax electrolyte under potentiostatic conditions. The results indicate the initial growth of a barrier film, containing boron species, followed by growth of boron-free alumina, containing pores. The efficiency of porous film formation is{\~ }45%, owing to the loss of Al3+ species to the electrolyte. 18O tracer is retained in the film as pores develop, which is suggested to be related to the inward transport of the O2- ions in the growing alumina. In contrast, boron species are lost from the film, which is attributed to the field-assisted dissolution of the alumina as pores develop in the boron-containing region.",

author = "A. Baron-Wiechec and P. Skeldon and Ganem, {J. J.} and Vickridge, {I. C.} and Thompson, {G. E.}",

year = "2012",

doi = "10.1149/2.001301jes",

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volume = "159",

pages = "C583--C589",

journal = "Journal of the Electrochemical Society",

issn = "0013-4651",

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TY - JOUR

T1 - Porous anodic alumina growth in borax electrolyte

AU - Baron-Wiechec, A.

AU - Skeldon, P.

AU - Ganem, J. J.

AU - Vickridge, I. C.

AU - Thompson, G. E.

PY - 2012

Y1 - 2012

N2 - Ion beam analysis and electron microscopy have been employed to investigate the formation of anodic films on aluminum in a borax electrolyte under potentiostatic conditions. The results indicate the initial growth of a barrier film, containing boron species, followed by growth of boron-free alumina, containing pores. The efficiency of porous film formation is ̃45%, owing to the loss of Al3+ species to the electrolyte. 18O tracer is retained in the film as pores develop, which is suggested to be related to the inward transport of the O2- ions in the growing alumina. In contrast, boron species are lost from the film, which is attributed to the field-assisted dissolution of the alumina as pores develop in the boron-containing region.

AB - Ion beam analysis and electron microscopy have been employed to investigate the formation of anodic films on aluminum in a borax electrolyte under potentiostatic conditions. The results indicate the initial growth of a barrier film, containing boron species, followed by growth of boron-free alumina, containing pores. The efficiency of porous film formation is ̃45%, owing to the loss of Al3+ species to the electrolyte. 18O tracer is retained in the film as pores develop, which is suggested to be related to the inward transport of the O2- ions in the growing alumina. In contrast, boron species are lost from the film, which is attributed to the field-assisted dissolution of the alumina as pores develop in the boron-containing region.

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DO - 10.1149/2.001301jes

M3 - 文章

AN - SCOPUS:84875526066

SN - 0013-4651

VL - 159

SP - C583-C589

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 12

ER -

Porous anodic alumina growth in borax electrolyte

Abstract

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