Fizika Nizkikh Temperatur: Volume 27, Number 4 (April 2001), p. 364-374    ( to contents , go back )

Composite magnetostrictive materials for advanced automotive magnetomechanical sensors

R. W. McCallum, K. W. Dennis, D. C. Jiles, J. E. Snyder, and Y. H. Chen

Ames Laboratory, Iowa State University, Ames, Iowa 50011, USA
E-mail: mccallum@ameslab.gov
pos Анотація:

Received January 24, 2001

Abstract

In this paper we present the development of a composite magnetostrictive material for automotive applications. The material is based on cobalt ferrite, CoO×2O3, and contains a small fraction of metallic matrix phase that serves both as a liquid phase sintering aid during processing and enhances the mechanical properties over those of a simple sintered ferrite ceramic. In addition the metal matrix makes it possible to braze the material making the assembly of a sensor relatively simple. The material exhibits good sensitivity and should have high corrosion resistance while at the same time it is low cost.

PACS:
75.80.+q - Magnetomechanical and magnetoelectric effects, magnetostriction
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