Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-10T08:54:10.020Z Has data issue: false hasContentIssue false

Elastic Properties of Porous Structural Ceramics Produced by Plasma-Spraying

Published online by Cambridge University Press:  10 February 2011

A. Wanner*
Affiliation:
Universität Stuttgart, Institut für Metallkunde, Seestr. 71, D-70174 Stuttgart, Germany, E-Mail: alexander.wanner@po.uni-stuttgart.de
Get access

Abstract

This study focuses on the relationship between porosity and elastic stiffness of structural ceramic materials produced by plasma-spraying. Mg-AI-spinel was chosen as a model material and studied in as-sprayed condition as well as upon annealing to increasingly higher temperatures up to 1650°C. The detailed analysis of the stiffness and mass density evolution offers a deep insight into the initial microstructural state of the material and into the morphological changes that occur upon heat treatment.

Type
Research Article
Copyright
Copyright © Materials Research Society 1998

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. Lutz, E.H.,J. Am. Ceram. Soc. 77, 1274 (1994).Google Scholar
2. Wanner, A. and Lutz, E.H., “Elastic anisotropy of plasma-sprayed, free-standing ceramic materials,” J. Am. Ceram. Soc. (submitted 1998).Google Scholar
3. Wang, H.G. and Herman, H., Ceramic Bulletin 68 (1), 97 (1989).Google Scholar
4. Schindler, S. and Schultze, W., Interceram 37, 39–32 (1988).Google Scholar
5. Lutz, E.H., LWK-Plasmakeramik GmbH, Wiehl, Germany (private communication, 1997/1998).Google Scholar
6. Wanner, A., “Elastic Modulus Measurements of Extremely Porous Ceramic Materials by Ultrasonic Phase Spectroscopy, ” Mater. Sci. and Engg. A. (1998) accepted for publication.Google Scholar
7. Lynnworth, L.C., Rea, W.R., and Papadakis, E.P., J. Acoust. Soc. Am. 70, 1699 (1981).Google Scholar
8. CRC Handbook of Chemistry and Physics, edited by Weast, R.C., 65th Edition (CRC-Press, Boca Raton, FL, 1984).Google Scholar
9. Porter, D.F., Reed, J.S., and IIILewis, D., J. Am. Ceram. Soc. 60, 345 (1977).Google Scholar
10. Gibson, L.J.and Ashby, M.F., Proc. R. Soc. LondonA 382A, 43 (1982).Google Scholar
11. Kachanov, M., Tsukov, I., and Shafiro, B., Appl. Mech. Rev. 47 (1), S151 (1994).Google Scholar
12. Wang, J.C. J. Mater. Sci. 19, 801 (1984).Google Scholar
13. Phani, K.K. and Niyogi, S.K., J. Mater. Sci. 22, 257 (1987).Google Scholar