Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-25T15:43:36.607Z Has data issue: false hasContentIssue false
  • English
  • Français

Survey of Eutectic Systems as Potential Intermetallic Matrix Composites for High Temperature Application

Published online by Cambridge University Press:  21 February 2011

S. Mazdiyasni  and
D. B. Miracle
S. Mazdiyasni
Affiliation:
WRDC/MLLM, Wright-Patterson AFB, OH 45433–6533
D. B. Miracle
Affiliation:
WRDC/MLLM, Wright-Patterson AFB, OH 45433–6533
Get access

Abstract

The lack of low-temperature damage tolerance along with the desire to achieve lower densities and higher creep strengths over monolithic intermetallic materials, has sparked significant interest in the research community for the development of an intermetallic matrix composite suitable for high temperature structural applications. Eutectic systems are desirable as composites due to the inherent thermodynamic stability between matrix and reinforcement. It also allows the opportunity of controlling the microstructure by control of solidification conditions. This paper presents a qualitative examination of the toughness behavior of the Cr-Cr2Zr, Cr-Cr2Hf, Cr-Cr2Ta, Cr-Cr3Si, Ta-Cr2Ta, and Ta-Ta5Si eutectics. The evaluation is based on microcracking from microhardness indentations and fracture appearance. Relative oxidation resistance at 800°C and 1200°C is also presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 194: Symposium R – Intermetallic Matrix Composites I , 1990 , 155
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. “Development Potential of Advanced Intermetallic Materials”, Fleisher, R.L. and Field, R.D., Air Force Contract No. F33615–86-C-5055, Final Report.Google Scholar
2. “Development Potential of Advanced Intermetallic Materials”, Shaw, D.M., Duhl, D.N., andAnton, D.L., Air Force Contract No. F33615–87-C-5214, Reports No. 1–12 Google Scholar
3. Binary Alloy Phase Diagrams, Vol.1–3, Eds. Massalski, T.B., Murray, J.L., Bennett, L.H., and Baker, H., American Society for Metals, Metals Park, Ohio, (1986).Google Scholar
4. Evans, A.G. and Charles, E.A., “Fracture Toughness Determinations by Indentation, J. Am. Ceram. Soc., 59(7–8), 371–372, (1976).Google Scholar
5. Ashby, M.F., Blunt, F.J., and Bannister, M., “Flow Characteristics of Highly Constrained Metal wires,” Acta Metall., 37(7), 1847–1857 (1989).Google Scholar