Hostname: page-component-7bb8b95d7b-wpx69 Total loading time: 0 Render date: 2024-09-20T16:18:19.780Z Has data issue: false hasContentIssue false
  • English
  • Français

Sic Reinforced-Mosi2 Alloy Matrix Composites

Published online by Cambridge University Press:  21 February 2011

J. J. Petrovic ,
R. E. Honnell  and
A. K. Vasudevan
J. J. Petrovic
Affiliation:
Los Alamos National Laboratory, Group MST-4, Los Alamos, NM 87545
R. E. Honnell
Affiliation:
Los Alamos National Laboratory, Group MST-4, Los Alamos, NM 87545
A. K. Vasudevan
Affiliation:
Office of Naval Research, Code 1216, 800 N. Quincy St., Arlington, VA 22217-5000
Get access

Abstract

MoSi2 based composites possess significant potential as high temperature structural materials. The present investigation constitutes an initial study of the fabrication and properties of MoSi2/silicide alloys and SiC particle reinforced-MoSi2 /silicide alloy matrix composites. Alloying disilicides (WSi2, Nb5Si2, Ta5Si2 ) and trisilicides (Mo5 Si3, W5Si3, Nb5Si3, Ta5Si3, Ti5Si3 ) were examined. Results indicated that at the 50/50 mole % alloying level, MoSi2 formed solid solutions with the alloying disilicides. Reaction of the MoSi2 /TaSi2 alloy with SiC was observed. An initial assessment of 50/50 mole % disilicide alloy oxidation behavior suggested an oxidation resistance inferior to that of pure MoSi2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 123
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

1. Gac, F.D. and Petrovic, J.J., J. Amer. Ceram. Soc., 68, C200 (1985).Google Scholar
2. Gibbs, W.S., Petrovic, J.J., Honnell, R.E., Ceram. Eng. Sci. Proc., 8, 645 (1987).Google Scholar
3. Carter, D.H., Gibbs, W.S., Petrovic, J.J., in Ceramic Materials and Components for Encgines, (The American Ceramic Society, Ohio, 1989), p. 977.Google Scholar
4. Carter, D.H., Petrovic, J.J., Honnell, R.E., Gibbs, W.S., Ceram. Eng. Sci. Proc., 10, 1121 (1989).Google Scholar
5. Unal, O., Petrovic, J.J., Carter, D.H., Mitchell, T.E., “Dislocations and Plastic Deformation in MoSi2”, accepted for publication in the Journal of the American Ceramic Society.Google Scholar
6. Petrovic, J.J. and Honnell, R.E., Proceedings, 14th AnnualAmerican Ceramic Society Conference on Composites and Advanced Ceramics, January 1990, Cocoa Beach, Florida.Google Scholar
7. Samsonov, G.V., Silicides and Their Uses in Engineering, (Akademiya Nauk Ukrainskoy SSR, Institut Metallokeramiki i Spetsial'nykh Splavov, Kiev, 1959).Google Scholar
8. Samsonov, G.V. and Vinitskii, I.M., Handbook of Refractory Compounds, (IFI/Plenum, New York, 1980).Google Scholar
9. Fitzer, E. and Remmele, W., in Fifth International Conference on Composite Materials ICCM-V, (The Metallurgical Society, Pennsylvania, 1985), p. 515.Google Scholar