NDLI: Bonded Terfenol-D composites with low eddy current loss and high magnetostriction

Content Provider	Springer Nature Link
Author	Tian, Jianjun Zuo, Zhijun Pan, De’an Zhang, Shengen
Copyright Year	2010
Abstract	Bonded Terfenol-D composites, with high electrical resistivity and low eddy current loss, can be used in an alternating magnetic field with high frequency. However, the nonmagnetic binder impairs the magnetostriction of the composites. To achieve high magnetostriction and low eddy current loss, the mixture of the alloy powder and binder was compressed at low pressure in an oriented magnetic field. After this, the aligned samples were recompressed by cold isostatic pressing (CIP). Besides, the effect of particle size on the magnetostriction of the bonded Terfenol-D composites was also studied. The results showed that the bonded Terfenol-D composites had excellent magnetostriction when the particle size was 50–80 μm. The oriented magnetic field and CIP could improve the magnetostriction of the bonded composites, which reaches 1020×10$^{−6}$. The bonded Terfenol-D composites had good compact structure and high density (7.24 g/cm$^{3}$). The magnetic loss of the bonded Terfenol-D composites was 192 mW/cm$^{3}$ at a frequency of 100 kHz in a magnetic field of 960 A/m, which was about one third of that of casting Terfenol-D alloys.
Starting Page	579
Ending Page	582
Page Count	4
File Format	PDF
ISSN	10010521
Journal	Rare Metals
Volume Number	29
Issue Number	6
e-ISSN	18677185
Language	English
Publisher	University of Science and Technology Beijing
Publisher Date	2010-11-20
Publisher Place	Beijing
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	composites Terfenol-D magnetostriction eddy current losses density Physical Chemistry Inorganic Chemistry Ceramics, Glass, Composites, Natural Methods Nanotechnology Metallic Materials Surfaces and Interfaces, Thin Films
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Physical and Theoretical Chemistry Condensed Matter Physics

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