Abstract
Chromia grown on pure chromium at 900 °C for 30 min at an oxygen partial pressure p(O2) of 10−12 atm has been characterized using photoelectrochemical and electron microscopy techniques. This study reveals a duplex scale: n-chromia with equiaxis morphology in the internal part (~650 nm thick) and p-chromia with columnar morphology in the external part (~900 nm thick). Grain orientation maps also revealed the presence of a c-oriented chromia layer at the interface between the n- and the p-subscales. This 〈 0001 〉 textured layer was identified as the first-grown chromia layer. It means that internal n-equiaxis chromia grew by anionic transport governed by oxygen vacancy diffusion, whereas external p-columnar chromia layer grew outwards and was controlled by chromium vacancy diffusion.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
C. Wagner, Annual Review of Materials Science 7, 1977 (1).
J. H. Chen, P. M. Rogers and J. A. Little, Oxidation of Metals 47, (5/6), 1997 (381).
P. Kofstad and K. P. Lillerud, Journal of the Electrochemical Society 127, 1980 (2410).
F. Lebreau, M. M. Islam, B. Diawara and P. Marcus, Journal of Physical Chemistry C 118, 2014 (18133).
Crawford J. A. Crawford and R. W. Vest, Journal of Applied Physics 35, 1964 (2413).
A. Holt and P. Kofstad, Solid State Ionics 69, 1994 (127).
S. Henry, J. Mougin, Y. Wouters, J.-P. Petit and A. Galerie, Materials at High Temperatures 17, (2), 2000 (231).
K. P. Lillerud and P. Kofstad, Journal of the Electrochemical Society 127, 1980 (2397).
D. Caplan and G. I. Sproule, Oxidation of Metals 9, (5), 1975 (459).
F. Di Quarto, C. Sunseri, S. Piazza and M. C. Romano, The Journal of Physical Chemistry B 101, (14), 1997 (2519).
Y. Madi, L. Latu-Romain, S. Mathieu, V. Parry, J.-P. Petit, M. Vilasi and Y. Wouters, Corrosion Science 87, 2014 (218).
L. Latu-Romain, Y. Madi, S. Mathieu, F. Robaut, J.-P. Petit and Y. Wouters, Corrosion Science 101, 2015 (193).
L. Latu-Romain, S. Mathieu, M. Vilasi, G. Renou, S. Coindeau, A. Galerie, Y. Wouters, Oxidation of Metals, under press (2016)
Y. Wouters, L. Marchetti, A. Galerie and J.-P. Petit, Corrosion Science 50, 2008 (1122).
E. F. Rauch and M. Véron, Materials Characterization 98, 2014 (1).
J. Mougin, T. Le Bihan and G. Lucazeau, Journal of Physics and Chemistry of Solids 62, 2001 (553).
W. W. Gärtner, Physical Review 116, 1959 (84).
M. A. Butler, Journal of Applied Physics 48, 1977 (1914).
K. P. Lillerud and P. Kofstad, Journal of the Electrochemical Society 127, (11), 1980 (2397).
K. Taneichi, T. Narushima, Y. Iguchi and C. Ouchi, Materials Transactions 47, (10), 2006 (2540).
P. Sarrazin, A. Galerie, J. Fouletier in “Mechanisms of High Temperature Corrosion”, Trans Tech Publications, Ltd, (2008)
K. P. Lillerud and P. Kofstad, Oxidation of Metals 17, (1/2), 1982 (127).
K. J. W. Atkinson, R. W. Grimes, M. R. Levy, Z. L. Coull and T. English, Journal of the European Ceramic Society 23, 2003 (3059).
X. Ledoux, S. Mathieu, M. Vilasi, Y. Wouters, P. Del-Gallo and M. Wagner, Oxidation of Metals 80, 2013 (25).
Acknowledgments
This work has benefited from the support of the PSEUDO project of the French National Research Agency (ANR) and was performed within the framework of the Centre of Excellence of Multifunctional Architectured Materials “CEMAM” n°AN-10-LABX-44-01 funded by the “Investments for the Future” Program. Special acknowledgments are given to Gilles Renou for his precious help on TEM microscope.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Latu-Romain, L., Parsa, Y., Mathieu, S. et al. Duplex n- and p-Type Chromia Grown on Pure Chromium: A Photoelectrochemical and Microscopic Study. Oxid Met 86, 497–509 (2016). https://doi.org/10.1007/s11085-016-9648-6
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11085-016-9648-6