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Estimating the Effective Magnetostriction of a Composite: A Simple Model

J. F. Herbst, T. W. Capehart, F. E. Pinkerton

Abstract

For a composite consisting of magnetostrictive particles dispersed in a nonmagnetostrictive matrix, a simple, approximate model for the effective magnetostriction, defined as the ratio of the magnetostriction of the composite to that of the magnetostrictive component, is described. The predictions of the model compare well with measurements on SmFe2-based composites having Al and Fe matrices.

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Available abstract

Key concepts: Magnetostriction, Composite number, Materials science, Simple (philosophy), Composite material, Matrix (chemical analysis), Physics, Magnetic field