Longitudinal and transverse magnetoelectric voltage coefficients of magnetostrictive/piezoelectric laminate composite: theory

This paper presents a novel, long-type of magnetostrictive and piezoelectric laminate composite design in which the layers are, respectively, magnetized/poled along their length axes, and a theory for modeling its behavior. Using piezoelectric and magnetostrictive constitutive equations, and an equa...

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Bibliographic Details
Published in:IEEE transactions on ultrasonics, ferroelectrics, and frequency control ferroelectrics, and frequency control, 2003-10, Vol.50 (10), p.1253-1261
Main Authors: Shuxiang Dong, Jie-Fang Li, Viehland, D.
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Coupling circuits
Direct current
Electric potential
Equations
Equations of motion
Equivalent circuits
Exact sciences and technology
Laminates
Magnetic analysis
Magnetic field measurement
Magnetic materials
Magnetic properties and materials
Magnetoelasticity
Magnetomechanical and magnetoelectric effects, magnetostriction
Magnetostriction
Mathematical models
Physics
Piezoelectricity
Voltage
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Summary:This paper presents a novel, long-type of magnetostrictive and piezoelectric laminate composite design in which the layers are, respectively, magnetized/poled along their length axes, and a theory for modeling its behavior. Using piezoelectric and magnetostrictive constitutive equations, and an equation of motion, a magneto-elasto-electric bieffect equivalent circuit is developed. The circuit is used to predict the longitudinal and transverse magnetoelectric (ME) voltage coefficients of our Terfenol-D/Pb(Zr/sub 1-x/Ti/sub x/)O/sub 3/ laminate design. It is found that the longitudinal ME voltage coefficient is significantly higher (/spl sim/5x) than the transverse one, and that our new laminate design has significantly higher ME voltage coefficients under small applied direct current (DC) magnetic bias fields than designs reported previously by other groups. Experimental values were found to be coincidental with predicted ones.
ISSN:0885-3010
1525-8955
DOI:10.1109/TUFFC.2003.1244741