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Magnetostriction, elastic moduli, and coupling factors of composite Terfenol-D

Sandlund, L; Fahlander, M; Cedell, Tord LU ; Clark, A E; Restorff, J B and Wun-Fogle, M (1994) In Applied Physics Reviews 75(10). p.5656-5658
Abstract
Recently it was discovered that composites of Terfenol-D alloys with an insulating binder produce very large magnetostrictions. Resistivities of these composites reach high values, making them attractive for high-frequency applications which require small eddy current losses. In this paper the magnetostriction, magnetization, and Young's moduli measurements made under constant magnetic field conditions and under constant flux conditions are reported. From these measurements, magnetomechanical coupling factors are calculated. The properties are compared to those of ordinary metallic Terfenol-D and nickel. Two different types of composites were investigated. In the first type the composite has an isotropic structure and in the second type,... (More)
Recently it was discovered that composites of Terfenol-D alloys with an insulating binder produce very large magnetostrictions. Resistivities of these composites reach high values, making them attractive for high-frequency applications which require small eddy current losses. In this paper the magnetostriction, magnetization, and Young's moduli measurements made under constant magnetic field conditions and under constant flux conditions are reported. From these measurements, magnetomechanical coupling factors are calculated. The properties are compared to those of ordinary metallic Terfenol-D and nickel. Two different types of composites were investigated. In the first type the composite has an isotropic structure and in the second type, anisotropic. It is shown that the anisotropic type is more desirable since it possesses both higher magnetostriction and higher coupling factors. It is also clearly shown that the magnetization process for the anisotropic type can be explained by a 180° domain wall motion followed by a magnetization rotation. (Less)
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author
organization
publishing date
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Contribution to journal
publication status
published
subject
in
Applied Physics Reviews
volume
75
issue
10
pages
5656 - 5658
publisher
American Institute of Physics
external identifiers
  • scopus:36449004552
ISSN
0021-8979
DOI
10.1063/1.355627
language
English
LU publication?
yes
id
c902075b-00d2-4bf1-b194-653b0d79ed0d (old id 1512969)
date added to LUP
2009-12-22 10:33:46
date last changed
2017-07-30 03:42:33
@article{c902075b-00d2-4bf1-b194-653b0d79ed0d,
  abstract     = {Recently it was discovered that composites of Terfenol-D alloys with an insulating binder produce very large magnetostrictions. Resistivities of these composites reach high values, making them attractive for high-frequency applications which require small eddy current losses. In this paper the magnetostriction, magnetization, and Young's moduli measurements made under constant magnetic field conditions and under constant flux conditions are reported. From these measurements, magnetomechanical coupling factors are calculated. The properties are compared to those of ordinary metallic Terfenol-D and nickel. Two different types of composites were investigated. In the first type the composite has an isotropic structure and in the second type, anisotropic. It is shown that the anisotropic type is more desirable since it possesses both higher magnetostriction and higher coupling factors. It is also clearly shown that the magnetization process for the anisotropic type can be explained by a 180° domain wall motion followed by a magnetization rotation.},
  author       = {Sandlund, L and Fahlander, M and Cedell, Tord and Clark, A E and Restorff, J B and Wun-Fogle, M},
  issn         = {0021-8979},
  language     = {eng},
  number       = {10},
  pages        = {5656--5658},
  publisher    = {American Institute of Physics},
  series       = {Applied Physics Reviews},
  title        = {Magnetostriction, elastic moduli, and coupling factors of composite Terfenol-D},
  url          = {http://dx.doi.org/10.1063/1.355627},
  volume       = {75},
  year         = {1994},
}