Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-27T02:32:09.124Z Has data issue: false hasContentIssue false
  • English
  • Français

Microstructural Characterization of α-Al2O3 Implanted with Iron

Published online by Cambridge University Press:  28 February 2011

P.S. Sklad ,
J.D. McCallum ,
S.J. Pennycook ,
C.J. McHargue ,
C.W. White  and
A. Perez
P.S. Sklad
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376
J.D. McCallum
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376
S.J. Pennycook
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376
C.J. McHargue
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376
C.W. White
Affiliation:
Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 37831-6376
A. Perez
Affiliation:
Universite Claude Bernard, Lyon I, Villeurbanne Cedex, France
Get access

Abstract

The microstructural and compositional changes produced in the near surface region of single crystals of α-A12O3 by ion-implantation with iron have been investigated by a number of complementary techniques, including Rutherford backscattering spectroscopy (RBS), conversion-electron Mdssbauer spectroscopy (CEMS), analytical electron microscopy (AEM), and scanning transmission electron microscopy (STEM). Iron precipitates, 1 to 3 nm in diameter, have been identified in as-implanted material at depths corresponding to the peak in the deposited iron concentration profile. The same techniques have been used to monitor the redistribution of iron and the corresponding changes in valence state during post-implantation annealing. Electron microscopy has been used to correlate RSB and CEMS results with the microstructural development.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 138: Symposium Q – Characterization of the Structure and Chemistry of Defects in Materials , 1988 , 119
Copyright
Copyright © Materials Research Society 1989

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Farlow, G.C., White, C.W., McHargue, C.J., Sklad, P.S., and Appleton, B.R., Nucl. Inst. and Meth. B7/8, 541 (1985).CrossRefGoogle Scholar
2. Sawicka, B.D. and Sawicki, J.A, Tovics in Current Physics, Vol. 25, edited by Gonser, U. (Springer, Berlin, 1981), p. 139.Google Scholar
3. McHargue, C.J., Sklad, P.S., White, C.W., Farlow, G.C., Perez, A., Kornilios, N., and Marest, G., in Fundamentals of Beam-Solid Interactions and Transient Thermal Processing, edited by Aziz, M.J., Rehn, L.E., and Stritzker, B. (Mater. Res. Soc. Proc. 100 Pittsburgh, PA 1988), pp. 119–124.Google Scholar
4. Sklad, P.S., in Proc. 44th Ann. Meet. EMSA, edited by Bailey, G. W. (San Francisco Press, San Francisco, 1986), p. 276.Google Scholar
5. Fisher, A.T. and Angelini, P., in Proc. 43rd Ann. Meet. EMSA, edited by Bailey, G. W. (San Francisco Press, San Francisco, 1985), p. 182.Google Scholar
6. Sklad, P.S., McHargue, C.J., White, C.W., and Farlow, G.C., in High Tech Ceramics, edited by Vincenzini, P. (Elsevier Science Publishers B.V., Amsterdam, 1987), p. 1073.Google Scholar
7. McHargue, C.J., Farlow, G.C., Sklad, P.S., White, C.W., Perez, A., Kornilios, N., and Marest, G., Nucl. Inst. and Meth. B19/20, 813 (1987).CrossRefGoogle Scholar
8. Pennycook, S.J., Berger, S.D., and Culbertson, R.J., J. of Microscopy 144, 229 (1986).CrossRefGoogle Scholar
9. Sklad, P.S., in Proc. 45th Ann. Meet. EMSA, edited by Bailey, G. W. (San Francisco Press, San Francisco, 1987), p. 146.Google Scholar