Journal
ELECTROCHEMICAL AND SOLID STATE LETTERS
Volume 13, Issue 11, Pages C33-C35Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/1.3478482
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Funding
- Spanish MC-INN [MAT-2006-12913]
- European Regional Development Fund
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The development of local burning phenomena during galvanostatic anodizing of the AA1050 aluminum alloy in a sulfuric acid electrolyte was analyzed. The oxide hillocks formed during burning were controlled and characterized at different anodizing times. Field-emission-scanning electron microscope images, electron probe microanalysis, energy-dispersive X-ray spectroscopy analysis, and microhardness measurements showed that the porous anodic alumina (PAA) that formed the hillocks had a different structure, composition, and mechanical behavior than the standard PAA. Moreover; Fe and Si were detected at the very top parts of the hillocks, suggesting a connection between intermetallic particles and burning initiation. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3478482] All rights reserved.
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