Abstract
The strategy to perform nanoscale studies of the initial stages of oxidation of TiAl involved first gaining some information on the electronic structure of pure TiO2 surfaces and then on TiAl surfaces before and after oxidation both in low- and high-oxygen potentials. Both materials were studied in atomically-cleaned states generated by repeated sputtering and heating. It was found that the oxygen vacancies created additional defect states in the band gap of stoichiometric TiO2. The results obtained on TiO2 were used as fingerprints to study the oxide nucleation. The results on the initial stages of oxidation of TiAl confirm the nucleation of Ti2O3 islands of nanometer size and monolayer height in a low-oxygen-pressure environment, whilst a TiO2 layer developed in an atmospheric environment. The ledges on atomically-cleaned surfaces usually acted as nucleation sites.
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REFERENCES
P. K. Datta, K. Natesan, and J. S. Burnell-Gray, Coatings technology: intermetallic coatings and coatings for intermetallics, invited book chapter: Intermetallic Compounds: Principles and Practice Vol. 3 Progress. J. H. Westbrook, and R. L. Fleischer, eds. (John Wiley, 2002), p. 561.
F. Appel et al., Advanced Engineering Materials 2, 699 (2000).
R. LeHolm, B. Norris, and A. Gurney, Advanced Materials & Processes 159, 27 (2001).
F. H. Froes and C. Suryanarayana, in Physical Metallurgy and Processing of Intermetallic Compounds, N. S. Stoloff, and V. K. Sikka Eds. (Chapman & Hall, 1996), p. 297.
M. M. Keller, P. E. Jones, W. J. Porter, and D. Eylon, JOM 49, 42 (1997).
T. Noda, Intermetallics 6, 709 (1998).
D. M. Dimiduk, Materials Science and Engineering A263, 281 (1999).
H. L. Du, P. K. Datta, D. B. Lewis, and J. S. Burnell-Gray, Corrosion Science 36, 631 (1994).
H. L. Du, P. K. Datta, J. Leggett, J. R. Nicholls, J. C. Bryar, and M. H. Jacobs, Advances in Surface Engineering, Vol. I, in Advances in Coatings and Surface Engineering, P. K. Datta, and J. S. Burnell-Gray, eds. (Proceedings, the Royal Society of Chemistry, Cambridge, 1997), pp. 53–66.
G. Welsh and A. J. Kahveci, Oxidation of High Temperature Intermetallics, (The Minerals, Metals, and Materials Society, Warrendale, 1988), pp. 207.
E. U. Lee and H. Waldman, Scripta Metall. 22, 1389 (1988).
E. Kasahara, M. Yoshimoto, and R. Tanaka, High Temperature Technology 8, 179 (1990).
R. A. Perkins, K. Y. Chiang, G. H. Meier, and R. Miller, Oxidation of High Temperature Intermetallics, (The Minerals, Metals, and Materials Society, Warrendale, 1988), p. 157.
A. Gil, H. Hoven, E. Wallura, and W. Quadakkers, Corrosion Science 34, 615 (1993).
E. H. Copland, B. Gleeson, and D. J. Young, Acta Mater 47, 2937 (1999).
R. A. Perkins, K. Y. Chiang, and G. H. Meier, Scripta Metall. 21, 1505 (1987).
W. B. Retallick, M. P. Brady, and D. L. Humphrey, Intermetallics 6, 335 (1998).
S. Frangini, A. Mignone, and F. DeRiccadis, Journal of Materials Science 29, 714 (1994).
S. A. Kekare and P. B. Aswath, Journal of Materials Science 32, 2485 (1997).
V. Shemet, H. Hoven, and W. J. Quadakkers, Intermetallics 5, 311 (1997).
J. Geng, G. Gantner, P. Oelhafen, and P. K. Datta, Applied Surface Science 158, 64 (2000).
S. K. Varma, A. Chan, and R. N. Mahapatra, Oxidation of Metals 55, 423 (2001).
K. E. Wiedemann, S. N. Sankaran, R. K Clark, and T. A. Wallace, Oxidation of High Temperature Intermetallics, (The Minerals, Metals, and Materials Society, Warrendale, 1988), p. 195.
S. Becker, A Rahmel, M. Schorr, and M. Sch¨utze, Oxidation of Metals 38, 425 (1992).
H. J. Guntherodt and R. Wiesendanger, eds. Scanning Tunneling Microscopy I, (Springer-Verlag, Berlin, 1992).
R. Wiesendanger and H. J. Guntherodt, eds. Scanning Tunneling Microscopy II, (2nd edn.) (Springer-Verlag, Berlin, 1995).
R. Wiesendanger and H. J. Guntherodt, eds. Scanning Tunneling Microscopy III, (2nd edn.) (Springer-Verlag, Berlin, 1996).
R. M. Feenstra, J. A. Stroscio, and A. P. Fein, Surface Science 181, 295 (1987).
R. M. Feenstra, Physics Reviews B50, 4561 (1994).
Z. Klusek, S. Pierzgalski, and S. Datta, Appl. Surf. Sci. 221, 120 (2004).
A. Basu, A. W. Brinkman, Z. Klusek, S. Datta, and P. Kowalczyk, J. Appl. Phys. 92, 4123 (2002).
Z. Klusek, Vacuum 63, 139 (2001).
Z. Klusek, Z. Waqar, W. Kozlowski, P. Kowlaczyk, E. Denisov, I. Makarenko, T. Kompaniets, A. Titkov, and P. K. Datta, Appl. Surf. Sci. 187, 28 (2002).
Z. Klusek, P. K. Datta, W. Kozlowski, P. Byszewski, and P. Kowlaczyk, Surf. Sci. 507–510, 577 (2002).
U. Diebold, Surface Science Reports, 48, 53 (2003).
P. Kofstad, High Temperature Corrosion, (Elsevier Applied Science, London and New York, 1988).
E. Asari, W. Hayami, and R. Souda, Applied Surface Science 167, 169 (2000).
V. E. Henrich, G. Dresselhaus, and H. J. Zeiger, Phys. Rev. Lett. 36, 1335 (1976).
Z. Zhang, S. Jeng, and V. E. Henrich, Phys. Rev. B43, 12004 (1991).
R. Heise, R. Courths, Adsorption in Ordered Surfaces of Ionic Solids and Thin Films, E. Umbach, and H. J. Freund eds. Springer Series in Surface Science, Vol. 33, (Springer-Verlag, Berlin 1993).
D. R. Gaskell, Introduction to Metallurgical Thermodynamics, (Hemisphere Publishing Corporation, 1981).
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Du, H.L., Datta, P.K., Klusek, Z. et al. Nanoscale Studies of the Early Stages of Oxidation of a TiAl-Base Alloy. Oxidation of Metals 62, 175–193 (2004). https://doi.org/10.1007/s11085-004-7806-8
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DOI: https://doi.org/10.1007/s11085-004-7806-8