| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1637292 | Transactions of Nonferrous Metals Society of China | 2012 | 5 Pages |
Abstract
The effect of applied voltage on nanopore formation stability of porous anodized alumina (PAA) in oxalic acid electrolyte was investigated. The Al anodization at a constant applied voltage is a popular electrochemical method to synthesize PAA templates. The experimental observations of Al anodization are used to compare the predictions of the THAMIDA model for interpore distance and the stability criterion of the SINGH model. It is found that, in the electrolyte of pH = 0.96, the interpore distance-applied voltage has a linear dependence coefficient of 2.24 nm/V, which agrees well with the THAMIDA model. It has also been confirmed that pore formation is instable at above 60 V which can be predicted by SINGH model. A second unstable growth regime below 30 V is also observed, which is not predicted by any of the models.
Related Topics
Physical Sciences and Engineering
Materials Science
Metals and Alloys
Authors
Xian-feng LI, Dong CHEN, Zhe CHEN, Yi WU, Ming-liang WANG, Nai-heng MA, Hao-wei WANG,