Depassivation and repassivation of titanium under particle impingements

E. Akiyama, K. Tsuzaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Current transients of a titanium microelectrode corresponding to an impingement of a single zirconia particle were measured in a buffer solution. It was found that the repassivation after a particle impact followed high field model of oxide growth. The apparent repassivation rate evaluated by the relation between the charge and the peak height of a current transient showed dependence on applied potential, and the apparent repassivation rate increased with increase of potential. The influence of potential applied passivation prior to particle impingement on the apparent repassivation rate was more predominant than that of the potential applied during impingement of relatively large particle. This indicates that the apparent repassivation rate does not represent the actual repassivation kinetics. It is suggested that the passive film formed prior to a particle impact and repassivation give rise to resistance against surface deformation and film breakdown, and that it affects the apparent repassivation behavior. copyright The Electrochemical Society.

本文言語英語
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437-446
ページ数10
4
ISBN(印刷版)1566774977, 9781566774970
DOI
出版ステータス出版済み - 2006
外部発表はい
イベント208th Meeting of the Electrochemical Society - Los Angeles, CA, 米国
継続期間: 10 16 200510 21 2005

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

その他

その他208th Meeting of the Electrochemical Society
国/地域米国
CityLos Angeles, CA
Period10/16/0510/21/05

All Science Journal Classification (ASJC) codes

  • 工学(全般)

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