Analysis and optimization of the magnetomechanical properties of terfenol-D composites at audio frequencies

M. Pasquale, C. Sasso, Sang Ho Lim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The magnetic and magnetostrictive properties of polymer-bonded Terfenol-D rods, compacted from powders with different phenol binder content, are measured in static and dynamic conditions. Magnetic measurements were made up to 40 kHz using a custom made amorphous yoke. Magnetostrictive characterization was performed with prestress up to 15 Mpa in quasi-static and dynamic conditions (up to 40 Hz). A maximum deformation of about 6 × 10-4, producing work, can be achieved with a variable phenol content. Dynamic magnetic properties were simulated using the dynamic Freisach model, obtaining an estimate value for conductivity. The inclusion of a non-conductive phenol binder increases the mechanical strength and favors a reduction of eddy current losses, for applications at sonic or ultrasonic frequency.

Original languageEnglish
Pages (from-to)3829-3831
Number of pages3
JournalIEEE Transactions on Magnetics
Volume35
Issue number5 PART 2
DOIs
Publication statusPublished - 1999 Dec 1
Externally publishedYes

Fingerprint

audio frequencies
Phenol
phenols
Phenols
optimization
Binders
composite materials
Composite materials
magnetic properties
Magnetic variables measurement
Eddy currents
eddy currents
dynamic models
Powders
Strength of materials
magnetic measurement
Dynamic models
Magnetic properties
Polymers
rods

Keywords

  • Dynamic characterization
  • Hysteresis modeling
  • Polymer-bonded composites
  • Preis ach modeling, giant magnetostriction
  • Terfenol-D

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Physics and Astronomy (miscellaneous)

Cite this

Analysis and optimization of the magnetomechanical properties of terfenol-D composites at audio frequencies. / Pasquale, M.; Sasso, C.; Lim, Sang Ho.

In: IEEE Transactions on Magnetics, Vol. 35, No. 5 PART 2, 01.12.1999, p. 3829-3831.

Research output: Contribution to journalArticle

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