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Formation of porous anodic titanium oxide films in hot phosphate/glycerol electrolyte
| Title: | Formation of porous anodic titanium oxide films in hot phosphate/glycerol electrolyte |
| Authors: | Habazaki, H. Browse this author | | Teraoka, M. Browse this author | | Aoki, Y. Browse this author | | Skeldon, P. Browse this author | | Thompson, G. E. Browse this author |
| Keywords: | Anodizing | | Organic electrolyte | | Titanium oxide | | Porous anodic oxide | | Crystallization |
| Issue Date: | 30-Apr-2010 |
| Publisher: | PERGAMON-ELSEVIER SCIENCE LTD |
| Journal Title: | ELECTROCHIMICA ACTA |
| Volume: | 55 |
| Issue: | 12 |
| Start Page: | 3939 |
| End Page: | 3943 |
| Publisher DOI: | 10.1016/j.electacta.2010.02.036 |
| Abstract: | The present study reveals the formation of porous anodic films on titanium at an increased growth rate in hot phosphate/glycerol electrolyte by reducing the water content. A porous titanium oxide film of 12 mu m thickness, with a relatively low content of phosphorus species, is developed after anodizing at 5 V for 3.6 ks in 0.6 mol dm(-3) K2HPO4 +0.2 mol dm(-3) K3PO4/glycerol electrolyte containing only 0.04% water at 433K. The growth efficiency is reduced by increasing the formation voltage to 20V, due to formation of crystalline oxide, which induces gas generation during anodizing. The film formed at 20V consists of two layers, with an increased concentration of phosphorus species in the inner layer. The outer layer, comprising approximately 25% of the film thickness, is developed at low formation voltages, of less than 10 V, during the initial anodizing at a constant current density of 250 A m(-2). The pore diameter is not significantly dependent upon the formation voltage, being similar to 10 nm. (C) 2010 Elsevier Ltd. All rights reserved. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/43906 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 幅崎 浩樹
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