A pseudo 2-2 type multilayered magnetoelectric composite of Pb(Zr, Ti)O(3) slice array (with base) and Terfenol-D/epoxy medium was prepared by the dice-and-fill technique. Obvious magnetoelectric anisotropy was observed in the pseudo 2-2 type composite, e.g. the magnetoelectric coefficients at low frequency were about (1.62-1.75) x 10(5) V.m(-1) T(-1) in the in-plane directions,but only 1.3 x 10(4) V.m(-1).T(-1) in the out-of-plane direction. The pseudo 2-2 type composite can detect AC magnetic field as small as 10(-9) T under resonance drive. The magnetoelectric anisotropy and high magnetic field sensitivity make such pseudo 2-2 type multilayered magnetoelectric composites detect both direction and magnitude of magnetic field, which is of technological importance for applications as magnetic sensors.
展开▼
机译:通过切块和填充技术制备了Pb(Zr,Ti)O(3)切片阵列(含碱)和Terfenol-D /环氧树脂介质的伪2-2型多层磁电复合材料。在准2-2型复合材料中观察到明显的磁电各向异性。低频的磁电系数在面内方向上约为(1.62-1.75)x 10(5)Vm(-1)T(-1),但只有1.3 x 10(4)Vm(-1).T (-1)在平面外方向上。伪2-2型复合材料在共振驱动下可以检测到10(-9)T的交流磁场。磁电各向异性和高磁场灵敏度使这种伪2-2型多层磁电复合材料能够同时检测磁场的方向和大小,这对于作为磁传感器的应用具有重要的技术意义。
展开▼