Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-09T13:34:25.246Z Has data issue: false hasContentIssue false
  • English
  • Français

Surface Morphology of Single-Crystal Ceramics

Published online by Cambridge University Press:  26 February 2011

D.W. Susnitzky  and
C.B. Carter
D.W. Susnitzky
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
C.B. Carter
Affiliation:
Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853
Get access

Abstract

Surfaces of crystalline materials generally facet and form steps and ledges on low-index planes to reduce their total energy. A conventional wedge-shaped transmission electron microscope (TEM) thin foil, prepared slightly misoriented with respect to a low-index plane, provides a suitable geometry for the study of surface ledges, steps and facets. This TEM study characterizes the surface features of annealed thin foils prepared from various oxides with a range of nominally low-index orientations. Observations from single-crystal α-A12O3 and MgAl2O4 (spinel) will be included.

The steps and facets typically form along energetically favorable, low-index planes and bound terraces of low-index orientation. The structure of these features are discussed. In addition, surface step movement has been observed and monitored through a series of reannealing experiments on the same foil.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 82: Symposium I – Characterization of Defects in Materials , 1986 , 463
Copyright
Copyright © Materials Research Society 1987

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

REFERENCES

1. Chang, C.C., J. Appl. Phys. 39, 5570 (1968).Google Scholar
2. Firment, L.E., Surf. Sci. 116, 205 (1982).Google Scholar
3. Kurtz, R.L. and Henrich, V.E., Surf. Sci. 129, 345 (1983).CrossRefGoogle Scholar
4. Henrich, V.E., Rep. Prog. Phys. 48, 1481 (1985).CrossRefGoogle Scholar
5. Morrissey, K.J., Czandema, K.K., Carter, C.B. and Merrill, R.P., J. Am. Ceram. Soc. 67, C–88 (1984).Google Scholar
6. Susnitzky, D.W., Simpson, Y. Kouh, De Cooman, B.C. and Carter, C.B., Proc. Mat. Res. Soc. Symp. 60, 219 (1986).Google Scholar
7. Susnitzky, D.W. and Carter, C.B., J. Am. Ceram. Soc. 69, C–217 (1986).Google Scholar
8. Cullen, G.W., J. Cryst. Growth 9, 107 (1971).Google Scholar
9. Tasker, P.W., Adv. Ceram. 10, 176 (1984).Google Scholar
10. Smith, D.J., J. Vac. Sci. Technol. B3, 1563 (1985).Google Scholar
11. Smith, D.J. and Bursill, L.A., Ultramicroscopy 17, 387 (1985).Google Scholar
12.Y. Kouh Simpson and Carter, C.B., Philos. Mag. Lett. A53, LI (1986).Google Scholar
13. Susnitzky, D.W. and Carter, C.B., J. Am. Ceram. Soc. 69, C–25 (1986).Google Scholar