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Microstructure and Magnetostriction of Rapidly-solidified Fe-Ga System Alloy

Published online by Cambridge University Press:  01 February 2011

Teiko Okazaki ,
Yasubumi Furuya ,
Chihiro Saito ,
Takashi Matsuzaki ,
Tadao Watanabe  and
Manfred Wuttig
Teiko Okazaki
Affiliation:
Faculty of Science and Technology, Hirosaki University, Hirosaki 036–8651, Japan
Yasubumi Furuya
Affiliation:
Faculty of Science and Technology, Hirosaki University, Hirosaki 036–8651, Japan
Chihiro Saito
Affiliation:
Faculty of Science and Technology, Hirosaki University, Hirosaki 036–8651, Japan
Takashi Matsuzaki
Affiliation:
Graduate School of Engineering, Tohoku University, Sendai 980–8579, Japan
Tadao Watanabe
Affiliation:
Graduate School of Engineering, Tohoku University, Sendai 980–8579, Japan
Manfred Wuttig
Affiliation:
Department of Materials and Nuculear Engineering, University of Maryland, College Park, MD 20742–2115, USA
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Abstract

Rapid-solidification method was applied to make Fe-15at%Ga and Fe-17at%Ga ribbons of 100 μm thickness. These ribbons have large magnetostriction of 270 ppm, where the coercive force exhibits a maximum value. The phenomenon is related to special metallic texture, that is, the ribbon has strongly [001]-oriented textured fine columnar microstructure with grain size of 2∼5 μm. The ribbon has little-hysteresis loop of magnetostriction and a good ductility (i.e., full bending is possible). Rapid-solidified Fe-Ga alloy has a promising possibility as a new magnetic-induced sensor/actuator material.

Information

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 785: Symposium D – Materials and Devices for Smart Systems , 2003 , D12.4
Copyright
Copyright © Materials Research Society 2004

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References

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