A Study of Short Metal Fiber Reinforced Composite Materials

Abstract

Over the years, the conventional involvement of short fiber reinforced composites in electrical applications has been as electrical insulation. Contrary to this approach, with the increasing need of better electromagnetic interference (EMI), radio—frequencyinterference (RFI) shielding and control of electrostatic charge distribution (ESD) for computer, defense, space exploration and some high—tech structural components, itis expected that the development of conductive polymeric composite materials will grow strongly and significantly.

An experimental investigation is designed to systematically evaluate the mechanical properties and electrical properties of metal fiber reinforced composites subjected to various loading conditions. In this study, chopped Inconel 601 (nickel base) metal fiber witha fixed fiber aspect ratio (length/diameter ratio) is used to reinforce commercially available thermoset polyester resin. Mechanical testing of custom made samples, failure analyses using visual inspection, light microscopy and SEM are conducted to understand the fracture behaviors and possible failure causes in such composites. The feasibility of using metal fiber polymeric composites in structural/electrical applicationsis discussed in this paper.

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Correspondence to W. C. Chung.

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Chung, W.C. A Study of Short Metal Fiber Reinforced Composite Materials. MRS Online Proceedings Library 171, 379–385 (1989). https://doi.org/10.1557/PROC-171-379

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