Frequency response of magnetoelectric 1–3-type composites

Abstract

A three-phase magnetoelectric ͑ME͒ composite consisting of Pb͑Zr, Ti͒O 3 rods embedded in a matrix of Terfenol-D/epoxy ͑TDE͒ pseudo 1-3 composites has been fabricated. Besides the large ME effect, its frequency response under a magnetic bias field has been studied. It was found that the resonance shifts to lower frequency with increasing bias field. Due to the magnetomechanical characteristics of the TDE pseudo 1-3 medium, the composite shows a similar trend in ME performance. Magnetic-field dependence of the frequency shift provides a means to tune the performance of ME sensors based on the composite.

Status and Perspectives of Multiferroic Magnetoelectric Composite Materials and Applications

“…Tatarenko et al [131] reported the converse ME effect over the [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25] GHz range in bilayers of single crystal ZnY and polycrystalline PZT or single crystal PMN-PT. The resonator was tuned by 120 MHz with E = 12 kV/cm, and corresponding ME coupling strength A was about 10 MHz cm/kOe.…”

“…A peak ME response of 6 V/cm¨Oe was obtained between 80 and 110 kHz. Lam et al [20] studied the frequency response of PZT-TDE composite, made using the same dice-and-fill method, under magnetic bias field. It was found that the resonance shifted to a lower frequency with increasing magnetic bias field.…”

“…Figure 3. Development of bulk ME composites with different phase connectivity: (a)-(c) 0-3 connectivity [13,18]; (d)-(f) 1-3 connectivity [20,21]; and (g)-(i) 2-2 connectivity [22,24].…”

“…Despite its advantages, the high temperature co-firing process, similar to the ceramic sintering of 0-3 particulate composites, is challenging owing to the different shrinkage rates, thermal expansion mismatch, and interface inhomogeneities. [20,21], and (g)-(i) 2-2 connectivity [22,24].…”

“…Very few attempts have been made to fabricate 1-3 type bulk ME composites [19][20][21]. Shi et al [19] prepared a pseudo-1-3 type ME composite consisting of a PZT rod array (with base) and Terfenol-D/epoxy matrix (TDE) using the dice-and-fill technique, where diced PZT sample was filled with an epoxy resin solution containing Terfenol-D particles (Figure 3e).…”