@article{9bc74b3a23c448c0a6f058faa67231cb,
title = "Surface characterisation of Ni-free Co-Cr-W-based dental alloys exposed to high temperatures and the effects of adding silicon",
abstract = "We characterised the effects of the addition of Si on the surface oxide films formed on Ni-free Co-Cr-W-based dental alloys. The addition of Si prevented the formation of Co-containing oxides and stabilised the uniform oxide films, which primarily consisted of Cr2O3. Si segregation was noticed at the interface between the oxide films and the metal substrate. The Cr2O3 and SiO2 layers formed were observed to protect against oxygen diffusion, reducing the oxidation rate at elevated temperatures. Further, the addition of Si reduced the thickness and surface roughness of the oxide films.",
keywords = "A. Alloy, A. Cobalt, B. SEM, B. XPS, B. XRD, C. Oxidation",
author = "Kenta Yamanaka and Manami Mori and Akihiko Chiba",
note = "Funding Information: The authors would like to thank Isamu Yoshii, Koji Kuramoto, Yoshihiro Murakami, Kazuyo Ohmura, and Issei Narita, Institute for Materials Research, Tohoku University, for helping with sample preparation and the XRD, XPS, and EPMA measurements. We also thank Keita Ishimizu, KYOCERA Medical Corporation, for contributing to fruitful discussions. This research was financially supported by a Grant-in-aid for Japan Society for the Promotion of Science (JSPS) Fellows; the Inter-University Cooperative Research Program of the Institute for Materials Research, Tohoku University; the Supporting Industry Program of the Ministry of Economy, Trade and Industry (METI), Japan; the Innovative Research for Biosis-Abiosis Intelligent Interface program of the Graduate School of Dentistry, Tohoku University; and the Regional Innovation Cluster Program of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",
year = "2015",
month = may,
day = "1",
doi = "10.1016/j.corsci.2015.02.030",
language = "English",
volume = "94",
pages = "411--419",
journal = "Corrosion Science",
issn = "0010-938X",
publisher = "Elsevier Ltd.",
}