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Interface Design in Brittle-Brittle Systems

Faber, K. T. and Mumm, Daniel R. (1994) Interface Design in Brittle-Brittle Systems. In: High Performance Composites: Commonalty of Phenomena. Minerals, Metals & Materials Society , Warrendale, PA, pp. 131-142. ISBN 0873392477.

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In brittle matrix composites both ceramic, intermetallic, and cement-based, design of the fiber-matrix interface is key to achieving high composite toughness. In this paper we explore first, a method for accurately determining interfacial properties and second, the influence of physical and chemical aspects of the fiber-matrix interface which influence fracture toughness of the composite. A modified fiber pullout technique has been developed which allows direct experimental evaluation of the force-displacement relation for a crack bridging fiber. The technique allows continuous, accurate measurement of stable, progressive debonding and frictional sliding. Coupled with an appropriate analysis, the test provides a quantitative determination of interfacial properties relevant to the toughening of brittle materials. Among the parameters of influence in determining interfacial properties, and consequently, composite toughness, are interface toughness, surface roughness, residual stress state, and coefficient of friction. Each of these can be altered by use of coatings or surface modifications. Examples of each will be reviewed in a variety of brittle systems.

Item Type:Book Section
Faber, K. T.0000-0001-6585-2536
Additional Information:© 1994 ASM International. Funding for this work has been provided by the Advanced Research Projects Agency through the Office of Naval Research, Grant No. N00014-90-J-4020.
Funding AgencyGrant Number
Advanced Research Projects Agency (ARPA)UNSPECIFIED
Office of Naval Research (ONR)N00014-90-J-4020
Record Number:CaltechAUTHORS:20140908-181328349
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49431
Deposited By: George Porter
Deposited On:12 Sep 2014 23:31
Last Modified:03 Mar 2020 13:01

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