Skip to main content Accessibility help
×
Home

Creep Behavior of MoSi2-SiC Composites

  • Darryl P. Butt (a1), Stuart A. Maloy (a1), H. Kung (a1), David A. Korzekwa (a1) and John J. Petrovic (a1)...

Abstract

Using a cylindrical indenter, the indentation creep behavior of hot pressed and HIPed MoSi2-SiC composites containing 0-40% SiC by volume, was characterized at 1000-1200°C, 258-362 MPa. The addition of SiC affects the creep behavior of MoSi2 in a complex manner by pinning grain boundaries during pressing, thus leading to smaller MoSi2 grains; by obstructing or altering both dislocation motion and grain boundary sliding; and by increasing the overall yield stress of the material. Comparisons are made between indentation and compressive creep studies. It is shown that under certain conditions, compressive creep and indentation creep measurements yield comparable results after correcting for effective stresses and strain rates beneath the indenter.

Copyright

References

Hide All
1. Vasudevan, A. K. and Petrovic, J. J., Mat. Sci. and Engr., A155, 117 (1992).
2. Yu, E. C. and Li, J. C. M.., Phil. Mag., 36 141 811825 (1977); J. Mater. Sci., 12, 2214-2222 (1977).
3. Chu, S. N. G. and li, J. C. M., J. Mater. Sci., 12, 22002208 (1977); Mat. Sci. and Engr., 39, 1-10 (1979).
4. Roebuck, B. and Almond, E. A., J. Mater. Sci. Lent., 1, 519521 (1982).
5. Li, W. B. and Warren, R., Acta Metall. Mater., 41 [10] 30653069 (1993).
6. Backofen, W. A., Deformation Processing, Addison-Wesley Publishing Co., Reading, Ma, pp. 135, 1972.
7. Butt, D. P., Maloy, S. A., Kung, H., Korzekwa, D. A., and Petrovic, J. J., to be submitted to J. Am. Ceram. Soc.
8. Sadananda, K., Feng, C. R., Jones, H. N., and Petrovic, J. J., Mat. Sci. and Engr., A155, 227239 (1992); in Structural Intermetallics, Proceedings of the First International Symposium on Structural Intermetallics, R. Dardia et al. (Eds.), TMS, Pittsburgh, PA, 809-818, 1993.
9. Langdon, T. G., in Deformation of Ceramic Materials, pp 101126, Bradt, R. C. and Tressler, R. E. (Eds.), Plenum Press, New York, NY (1975).
10. Cotton, J. D., Kim, Y. S., and Kaufman, M. J., Mater. Sci. and Engr., A144, 287291 (1991).
11. Kim, Y. S., Johnson, M. R., Abbaschian, R., and Kaufman, M. J., in Hieh-Temperature Ordered Intermetallic Alloys IV, Mat. Res. Soc. Symp. Proc., Vol. 213, 839845 (1991).
12. Jacobson, N. S., Lee, K. N., Maloy, S. A., and Heuer, A. H., J. Am. Ceram. Soc., 76 [8] 20052009 (1993).

Related content

Powered by UNSILO

Creep Behavior of MoSi2-SiC Composites

  • Darryl P. Butt (a1), Stuart A. Maloy (a1), H. Kung (a1), David A. Korzekwa (a1) and John J. Petrovic (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed.