Manganese substituted cobalt ferrite magnetostrictive materials for magnetic stress sensor applications

Paulsen, J. A., Ring, A. P., Lo, C. C. H., Snyder, John Evan and Jiles, David 2005. Manganese substituted cobalt ferrite magnetostrictive materials for magnetic stress sensor applications. Journal of Applied Physics 97 (4) , 044502. 10.1063/1.1839633

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Abstract

Metal bonded cobalt ferrite composites have been shown to be promising candidate materials for use in magnetoelastic stress sensors, due to their large magnetostriction and high sensitivity of magnetization to stress. However previous results have shown that below 60 °C the cobalt ferrite material exhibits substantial magnetomechanical hysteresis. In the current study, measurements indicate that substituting Mn for some of the Fe in the cobalt ferrite can lower the Curie temperature of the material while maintaining a suitable magnetostriction for stress sensing applications. These results demonstrate the possibility of optimizing the magnetomechanical hysteresis of cobalt ferrite-based composites for stress sensor applications, through control of the Curie temperature.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Schools > Engineering
Uncontrolled Keywords:	cobalt compounds, manganese compounds, ferrites, magnetostriction, magnetic hysteresis, Curie temperature, magnetic moments, magnetic sensors
Publisher:	American Institute of Physics
ISSN:	0021-8979
Last Modified:	06 May 2023 08:23
URI:	https://orca.cardiff.ac.uk/id/eprint/13632

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