Oxidation behavior and effect of layer thickness on whiteness and exfoliation behavior of oxide film formed on Ti-Nb-Ta-Zr alloy

E. Miura-Fujiwara, S. Yamada, A. Obata, H. Sato, Y. Watanabe, T. Kasuga, M. Niinomi

研究成果: Conference contribution

7 被引用数 (Scopus)

抄録

Metallic materials for dentistry such as Ti alloys, the Pt group or Au group alloys have excellent mechanical properties as a load bearing material, however, they are inferior in point of esthetic. Ti-29Nb-13Ta-4. 6Zr alloy is β-type Ti alloy with excellent mechanical property as a biomedical load-bearing material, and on which it is found that a firm yellowish-white oxide layer is formed by heat treatment at a particular temperature. Therefore, the detailed study regarding the oxide film formation in Ti-29Nb-13Ta-4. 6Zr and its properties will be interesting in terms of biomedical applications. In the present study, the oxide formation behavior investigation was carried out with focusing on oxide exfoliation behavior and esthetic property. Our recent results revealed that multilayer oxide film covers Ti-29Nb-13Ta-4. 6Zr substrate, and which each layer has different color. From cross sectional observation, a dense white oxide layer formed on top, and whose thickness increased with increasing heat treatment temperature and duration time. CIELab measurement results suggest that L* increases with increasing layer thickness.

本文言語English
ホスト出版物のタイトルTi 2011 - Proceedings of the 12th World Conference on Titanium
ページ2116-2120
ページ数5
3
出版ステータスPublished - 2012 12 1
イベント12th World Conference on Titanium, Ti 2011 - Beijing, China
継続期間: 2011 6 192011 6 24

Other

Other12th World Conference on Titanium, Ti 2011
CountryChina
CityBeijing
Period11/6/1911/6/24

ASJC Scopus subject areas

  • Ceramics and Composites

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