Field crystallization of anodic niobia on Nb-O substrates

H. Habazaki, T. Ogasawara, H. Konno, K. Shimizu, K. Asami, S. Nagata, K. Takayama, P. Skeldon, G. E. Thompson

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Solid-solution Nb-O films, containing up to 50 at% 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 at% oxygen to the substrate, while no crystallization occurs for an Nb-50 at% O substrate. Prior thermal treatment accelerates field crystallization of niobium, but not of the Nb-50 at% O substrate. The thermal treatment is considered to promote generation of pre-cursor sites for crystal nucleation. However, sufficient oxygen in the substrate may restrict pre-cursor development and/or reduce the compressive stresses in the amorphous anodic niobia that can facilitate crystal growth. copyright The Electrochemical Society.

本文言語English
ホスト出版物のタイトルCorrosion and Electrochemistry of Advanced Materials, In Honor of Koji Hashimoto
出版社Electrochemical Society Inc.
ページ343-349
ページ数7
4
ISBN(電子版)1566774977
ISBN(印刷版)1566774977, 9781566774970
DOI
出版ステータスPublished - 2006
外部発表はい
イベント208th Meeting of the Electrochemical Society - Los Angeles, CA, United States
継続期間: 2005 10月 162005 10月 21

出版物シリーズ

名前ECS Transactions
番号4
1
ISSN(印刷版)1938-5862
ISSN(電子版)1938-6737

Other

Other208th Meeting of the Electrochemical Society
国/地域United States
CityLos Angeles, CA
Period05/10/1605/10/21

ASJC Scopus subject areas

  • 工学(全般)

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