Hostname: page-component-8448b6f56d-42gr6 Total loading time: 0 Render date: 2024-04-19T14:52:08.826Z Has data issue: false hasContentIssue false

Designing Interfaces in Inorganic Matrix Composites

Published online by Cambridge University Press:  29 November 2013

Get access

Extract

The key to controlling and predicting the properties of metal matrix composites lies in understanding and controlling the interface. When properly designed, the interface between reinforcing fibers and the matrix or protective coating can act as a mechanical fuse through a controlled delamination mechanism.

Controlled delamination, in effect, results in the decoupling of fibers from early damage due to stress concentrations in the vicinity. The delamination event must precede the crack bridging and frictional pull-out mechanisms that have been so effectively demonstrated in ceramic matrix composites. The delamination event, therefore, is the necessary precondition, and so analysis of composite toughening must start with a definition of the conditions for interface debonding.

This decoupling can be expressed in terms of cohesive strength of the interface, shear strength of the interface, and fiber fracture stress. In a related but alternative manner, debonding can be expressed in terms of the intrinsic work of fracture of the interface as compared to the transverse work of fracture of the fiber.

Type
Engineered Interfaces in Composites
Copyright
Copyright © Materials Research Society 1991

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.Zywicz, E., SM dissertation, Massachusetts Institute of Technology, 1986.Google Scholar
2.Zywicz, E. and Parks, D.M., Composites Sci. Technol. 33 (1988) p. 295.CrossRefGoogle Scholar
3.Gupta, V., Argon, A.S., and Cornie, J.A., J. Mater. Sci. 24 (1989), p. 20312040.CrossRefGoogle Scholar
4.Gupta, V., PhD dissertation, Massachusetts Institute of Technology, 1989.Google Scholar
5.Gupta, V., Argon, A.S., and Suo, Z., submitted to J. Appl. Mech.Google Scholar
6.Landis, H., PhD dissertation, Massachusetts Institute of Technology, 1988.Google Scholar
7.Argon, A.S., Gupta, V., Landis, K.S., and Cornie, J.A., J. Mater. Sci. 24 (1989) p. 12071218.CrossRefGoogle Scholar
8.Zhang, G-D., Feng, S.R., Li, Q., Blucher, J.T., and Cornie, J. A., in Controlled Interphase Structures (ICCI-3), edited by Ishida, H. (Elsevier, 1990).Google Scholar
9.Chambers, B.V., SD dissertation, Massachusetts Institute of Technology, in progress.Google Scholar
10.Li, Q., Megusar, J., Masur, L.T., and Cornie, J.A., Mater. Sci. Eng. A 117 (1989) p. 199206.CrossRefGoogle Scholar
11.Megusar, J., Chambers, B.V., Li, Q., and Cornie, J.A., presented to the 14th Annual Conference on Composites and Advanced Ceramics, Jan. 14-17, 1990, Cocoa Beach, FL.Google Scholar
12.Debolt, H.E., Cornie, J.A., Suplinskas, R.J., and Henze, T., “Coated Stoichiometric Silicon Carbide Filament,” U.S. Patent No. 4,340,636 (1982).Google Scholar
13.Debolt, H., Cornie, J.A., Suplinskas, R.J., and Henze, T., “Method of Applying a Carbon-Rich Surface Layer to a Silicon Carbide Filament,” U.S. Patent No. 4,415,609 (1982).Google Scholar
14.Cook, J. and Gordon, J.E., Proc. Roy. Soc. A 282 (1964) p. 508–20.Google Scholar
15.Metcalfe, A.G. in Composite Materials: Interfaces in Metal Matrix Composites, Vol. 1, edited by Metcalfe, A.G. (Academic Press, NY, 1974).Google Scholar
16.Gupta, V., Argon, A.S., Cornie, J.A., and Parks, D.M., Mater. Sci. Eng. A 126 (1990) p. 105.CrossRefGoogle Scholar
17.Gupta, V., Argon, A.S., Parks, D.M., and Cornie, J.A., Submitted to J. Mech. Phys. Solids.Google Scholar