Hostname: page-component-78c5997874-4rdpn Total loading time: 0 Render date: 2024-11-19T06:43:41.776Z Has data issue: false hasContentIssue false
  • English
  • Français

High-Energy High-Rate Processing of High-Temperature Metal-Matrix Composites

Published online by Cambridge University Press:  22 February 2011

C. Persad ,
S. Raghunathan ,
B.-H. Lee ,
D. L. Bourell ,
Z. Eliezer  and
H. L. Marcus
C. Persad
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
S. Raghunathan
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
B.-H. Lee
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
D. L. Bourell
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
Z. Eliezer
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
H. L. Marcus
Affiliation:
Center for Materials Science and Engineering The University of Texas at Austin, Austin, Texas 78712.
Get access

Abstract

Advances in kinetic energy storage devices have opened up a new approach to powder processing of High Temperature Composites. The processing consists of internal heating of a customized powder blend by a fast electrical discharge of a homopolar generator. The high-energy high-rate “lMJ in 1s” pulse permits rapid heating of a conducting powder in a cold wall die. This short time at temperature approach offers the opportunity to control phase transformations and the degree of microstructural coarsening not readily possible using standard powder processing approaches. This paper will describe the consolidation results of two high temperature composite materials, (W-Ni-Fe)/B4C and (Ti3 Al+Nb)/SiC. The focus of this study was the identification of the reaction products formed at the matrix/reinforcement interface as a function of input energy and applied stress. Input energies beyond a threshold value for each system were required to produce detectable reaction products. In the (W-Ni-Fe)/B4C system, the reaction products formed at 4000 kJ/kg input energy under 420 MPa applied stress were a series of complex carbides and borides including W2C, FeWB, Fe3C, Fe6W6C and Ni4B3. The intermetallic Fe7W6 was also observed. In the (Ti3Al+Nb)/SiC system, the reaction products observed at 3400 kJ/kg and 210 MPa were TiC and TiSi2.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 120: Symposium G – High-Temperature/High-Performance Composites , 1988 , 23
Copyright
Copyright © Materials Research Society 1988

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. Brindley, P. K. in High-Temperature Ordered Intermetallic Alloys II, edited by Stoloff, N. S., Koch, C. C., Liu, C. T., and Izumi, O. ( Mater. Res. Soc. Proc. 81, Pittsburgh, PA 1987) pp. 419–424.Google Scholar
2. Metcalfe, A. G. in Interfaces in Metal Matrix Composites, Volume 1, Metcalf, A. G. (ed.),( Academic Press, New York, NY, 1974) pp. 67–123.Google Scholar
3. Rhodes, C. G., Ghosh, A. K., and Spurling, R. A., Metallurgical Transactions A, Volume 18A, Dec. 1987, pp. 2151–2126.Google Scholar
4. Sheinberg, H., Int. J. of Refractory and Hard Metals, March 1983, pp. 17–26.Google Scholar
5. Sheinberg, H., Int. J. of Refractory and Hard Metals, December 1986, pp. 230–237.Google Scholar
6. Elkabir, G., PhD Dissertation, The University of Texas at Austin, August 1987.Google Scholar
7. Marcus, H. L., Bourell, D. L., Eliezer, Z., Persad, C. and Weldon, W. F., Journal of Metals, December 1987, pp. 6–10.Google Scholar
8. Elkabir, G., Rabenberg, L. K., Persad, C. and Marcus, H. L., Scripta Metallurgica, 20 (10),1986 pp. 1411–1416.Google Scholar
9. Marcus, H. L., Rabenberg, L. K., Brown, L. D., Elkabir, G., and Cheong, Y. M., in ICCM VI/ECCM 2-Composite Materials, eds. Matthews, F. L., Buskell, N. C. R., Hodgkinson, J. M. and Morton, J. (Elsevier Applied Science, London, 1987) p. 2.459.Google Scholar
10. Price, C.E. in Metals Handbook. 9th. edition. V. 9. Metallography and Microstructures (ASM, Metals Park, OH, 1985) p. 151.Google Scholar
11. Holt, J. B. and Kingman, D. D. in Emergent Process Methods for High-Technology Ceramics. eds.F.Davis, R., Palmour, H. III, and Porter, R. L. (Plenum Press, New York, NY, 1984) p. 167.Google Scholar
12. Fine, M. E., Bourell, D. L., Eliezer, Z., Persad, C., and Marcus, H. L., submitted to Scripta Met., March 1988.Google Scholar