Magnetoelectric behavior of terfenol-D composite and lead zirconate titanate ceramic laminates

Five magnetoelectric laminates of polymer-bonded Terfenol-D magnetostrictive composite (i.e., volume fractions (Vp) ranging from 0.16 to 0.48) and lead zirconate titanate (PZT-5H) piezoelectric ceramic were fabricated. The measured quasistatic magnetoelectric voltage coefficient (αE) increased gradually with increasing Vp and approached saturation for Vp > 0.4 due to increased elastic modulus and piezomagnetic coefficient of the magnetostrictive phase. A maximum αE of 2.7 V/cm · Oe was observed at a magnetic bias field (HBias) of 53 kA/m for the laminate with Vp = 0.48. αE was found to be a fairly linear function of HBias at 100-220 kA/m bias for all Vp values. dαE/dH B ias as a function of HB ias was found to increase with increasing Vp for HB ias values of 100-220 kA/m.Department of Applied Physic