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Oxide Formation on NbAl3, and TiAl Due to Ion Implantation of 18O

Published online by Cambridge University Press:  22 February 2011

Robert J. Hanrahan Jr. ,
Ellis D. Verink Jr. ,
Stephen P. Withrow  and
Eero O. Ristolainen
Robert J. Hanrahan Jr.
Affiliation:
University of Florida, Department of Materials Science and Engineering, Gainesville, FL 32611
Ellis D. Verink Jr.
Affiliation:
University of Florida, Department of Materials Science and Engineering, Gainesville, FL 32611
Stephen P. Withrow
Affiliation:
Oak Ridge National Laboratory, Oak Ridge TN 37831-6048
Eero O. Ristolainen
Affiliation:
Helsinki University of Technology, Espoo, Finland.
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Abstract

Surface modification by ion implantation of 18O ions was investigated as a technique for altering the high-temperature oxidation of aluminide intermetallic compounds and related alloys. Specimens of NbAl3 and TiAl were implanted to a dose of 1×1018 ions/cm2 at 168 keV. Doses and accelerating energies were calculated to obtain near-stoichiometric concentrations of oxygen. Use of 18O allowed the implanted oxygen profiles to be measured using secondary ion mass spectroscopy (SIMS). The near surface oxides formed were studied using x-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy. Specimens were also examined using x-ray diffraction and SEM. This paper presents results for specimens examined in the as-implanted state. The oxide formed due to implantation is a layer containing a mixture of Nb or Ti and amorphous Al oxides.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 316: Symposium A – Materials Synthesis and Processing Using Ion Beams , 1993 , 783
Copyright
Copyright © Materials Research Society 1994

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References

REFERENCES

1 Perkins, R.A. et al. . “Effects of Alloying, Rapid Solidification, and Surface Kinetics on the High Temperature Environmental Resistance of Niobium” (Final report. Contract # F49620-86-C-0018 Air Force Office of Scientific Research, 1989).Google Scholar
2 Kofstad, P., High Temperature Corrosion (Elsevier, New York, 1988) 315–19 .Google Scholar
3 Musket, R.G., Brown, D.W., and Hayden, H.C., Nucl. Inst. and Meth. B7/8 (1985) 31–7Google Scholar
4 Chereckdjian, S. and Wilson, I.H., Nucl. Inst. and Meth. B1 (1984) 258–64.Google Scholar
5 Myers, S.M. and Follstaedt, D.M., J.Appl.Phys. 63 (6) (1988) 1942–1950.Google Scholar
6 Follstaedt, D.M., Myers, S.M., and Bourcier, R.J., Nucl. Inst. and Meth. B59/60 (1991) 909–13.Google Scholar
7 Bourcier, R.J., Myers, S.M., and Polonis, D.H., Nucl. Inst. and Meth. B44 (1990) 278–88.Google Scholar
8 Okabe, Y., Iwaki, M., Takahashi, K., Ohira, S., and Crist., B.V., Nucl. Inst. and Meth. B39 (1989) 619–22.Google Scholar
9 Hanrahan, R.J., Verink, E.D., Withrow, S.P., and Ristolainen, E.O., in Processing and Characterization of Advanced Materials 1993. to be published by TMS, 1994.Google Scholar
10 Bunker, S.N. and Armini, A.J., Nucl. Inst. and Meth. B39 (1989) 7–10.Google Scholar
11 Davis, L.E. et al. . Handbook of Auger Electron Spectroscopy Second Ed. Elmer, Perkin, Physical Electronics Division, 1979.Google Scholar
12 Joint committee on powder diffraction standards. CD-ROM JCPDS file, 1988.Google Scholar