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Suppression of Field Crystallization of Anodic Niobia by Oxygen
Title: | Suppression of Field Crystallization of Anodic Niobia by Oxygen |
Authors: | Habazaki, H.1 Browse this author →KAKEN DB | Ogasawara, T. Browse this author | Konno, H. Browse this author | Shimizu, K. Browse this author | Nagata, S. Browse this author | Asami, K. Browse this author | Takayama, K. Browse this author | Skeldon, P. Browse this author | Thompson, G. E. Browse this author |
Authors(alt): | 幅崎, 浩樹1 |
Issue Date: | 27-Mar-2006 |
Publisher: | Electrochemical Society |
Journal Title: | Journal of the Electrochemical Society |
Volume: | 153 |
Issue: | 5 |
Start Page: | B173 |
End Page: | B177 |
Publisher DOI: | 10.1149/1.2184909 |
Abstract: | Solid-solution Nb–O films containing up to 50 atom % oxygen, prepared by magnetron sputtering, were used to investigate the influence of the oxygen on field crystallization during anodizing at 100 V in 0.1 mol dm(-3) ammonium pentaborate electrolyte at 333 K. The findings reveal that field crystallization is hindered dramatically by addition of 20 atom % oxygen to the substrate, while no crystallization occurs for a Nb–50 atom % O substrate. Prior thermal treatment accelerates field crystallization of niobium, but not the Nb–50 atom % O substrate. The thermal treatment is considered to promote generation of precursor sites for crystal nucleation. However, sufficient oxygen in the substrate may restrict precursor development and/or reduce the compressive stresses in the amorphous anodic niobia that can facilitate crystal growth. |
Rights: | Copyright © 2006 The Electrochemical Society |
Relation: | http://www.ecsdl.org/JES/ |
Type: | article |
URI: | http://hdl.handle.net/2115/8430 |
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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