Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-27T02:05:48.181Z Has data issue: false hasContentIssue false
  • English
  • Français

Processing of Nanocrystalline Ceramics

Published online by Cambridge University Press:  16 February 2011

Muhsin Ciftcioglu  and
Merrilea J. Mayo
Muhsin Ciftcioglu
Affiliation:
Center for Micro-Engineered Ceramics, University of New Mexico, Albuquerque, NM 87131
Merrilea J. Mayo
Affiliation:
Sandia National Laboratories, P.O. Box 5800, Albuquerque, NM 87185 Presently at the Department of Materials Science & Engineering, Pennsylvania State University, University Park, PA 16802
Get access

Abstract

Methods of preparing non-agglomerated powders for three systems -- yttria, titania, and yttria-stabilized zirconia -- are reviewed. The non-agglomerated nature of these powders should make it possible to sinter them into dense ceramic bodies with nanocrystalline grain sizes. Experiments with yttria-stabilized zirconia have shown that this is indeed the case, with mean linear intercept grain sizes of 60 nm resulting from original powder particle diameters of 13 nm. This ultrafine-grained zirconia is shown, in turn, to have superplastic forming rates 34 times faster than a 0.3 μm-grained commercial zirconia of the same composition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 196: Symposium T – Superplasticity in Metals, Ceramics, and Intermetallics , 1990 , 77
Copyright
Copyright © Materials Research Society 1990

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. Ciftcioglu, M., Akinc, M., and Burkhart, L.E., Am. Ceram. Soc. Bull. 65, 1591 (1986).Google Scholar
2. Barringer, E.A. and Bowen, H.K., J. Am. Ceram Soc. 65, C199 (1982).Google Scholar
3. Springer, L. and Yan, M.F., in Ultrastructure Processing of Ceramics. Glasses. and Composites, edited by Hench, L.L. and Ulrich, D.R. (John Wiley, New York, 1984) pp. 464–475.Google Scholar
4. Siege, R.W.. Ramasamy, S., Hahn, H., Zongquan, Li, Ting, Lu, and Gronsky, R., J. Mater. Res. 3, 1367 (1988).Google Scholar
5. Clearfield, A., Rev. Pure and Appl. Chem. 14, 91 (1964).Google Scholar
6. Evans, P.E., J. Am. Ceram. Soc. 53, 365 (1970).Google Scholar
7. Chung, T.E. and Davies, T.J., J. Nucl. Mater. 79, 143 (1979).Google Scholar