Influence of Be and Al on the magnetostrictive behavior of FeGa alloys

Journal Article · Thu Dec 15 00:00:00 EST 2005 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.2149491· OSTI ID:20787728

Mungsantisuk, Pinai; Corson, Robert P; Guruswamy, Sivaraman ^[1]

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1. Department of Metallurgical Engineering, University of Utah, 135 S 1460 E Room 412, Salt Lake City, Utah 84112 (United States)

The rare-earth-free body-centered-cubic FeGa-based alloys have an attractive combination of large low-field magnetostriction at room temperature, good mechanical properties, low hysteresis, and relatively low cost for use in sensor and actuator devices. This paper examines the influence of partially substituting Ga in FeGa alloys with Be and Al on their magnetostrictive behavior. Magnetic and magnetostrictive properties of the various ternary FeGaAl and FeGaBe alloys prepared by directional growth process are presented. It is shown that substitution of Ga with Al and Be can be made in FeGa alloys in certain composition ranges without a significant reduction in magnetostriction. Minimal reductions in magnetostriction when Ga is partially substituted by smaller Be or larger Al atoms in certain composition ranges indicate that local electronic environments are more important and that the effects of Ga and Be are additive.

• OSTI ID: 20787728
• Journal Information: Journal of Applied Physics, Vol. 98, Issue 12; Other Information: DOI: 10.1063/1.2149491; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
BCC LATTICES
BERYLLIUM ALLOYS
COERCIVE FORCE
CRYSTAL GROWTH
GALLIUM ALLOYS
HYSTERESIS
IRON ALLOYS
MAGNETIC MATERIALS
MAGNETOSTRICTION
MECHANICAL PROPERTIES
TEMPERATURE RANGE 0273-0400 K