摘要
采用热压法制备了中间层为聚偏氟乙烯(PVDF)/Tb-Dy-Fe合金(Terfenol-D)/锆钛酸铅(PZT),上、下层为PVDF/Terfenol-D的层状复合结构材料,研究了中间层Terfenol-D不同体积含量变化对样品介电常数、介电损耗、压电常数以及磁电耦合系数的影响规律。研究发现,在中间层的φ(Terfenol-D)=4%时,综合性能最优,其中压电系数d33为32.4pC/N,磁电耦合系数αE为1 118mV/A。
A simple hot-molding technique was used to prepare the laminated composites consisting of polyvinylidene （PVDF）/Tb-Dy-Fe alloy （Terfenol-D） /lead-zirconate （PZT）, with PVDF/Terfenol-D particulate composite as the upper and lower layers. The influence of volume change of the middle layer Terfenol-D on the dielectric coefficient, dielectric loss, piezoelectric coefficient and magneto-electric coupling coefficient were discussed. Experimental results demonstrated that when the volume fraction of the Terfenol-D was 4% in PVDF/Terfenol-D/PZT layer in laminated magneto-electric composites, magneto-electric coupling coefficient and piezoelectric coefficient could be the best, reaching to 1 118 mV/A and 32.4 pC/N respectively.
出处
《压电与声光》
CAS
CSCD
北大核心
2014年第3期373-375,379,共4页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(51102102)
国家科技支撑计划基金资助项目(2012BA113B00)
关键词
层状磁电复合材料
谐振频率
压电常数
磁电耦合系数
laminated magneto-electric composite
resonance frequency
piezoelectric constant
magneto-electric coupling coefficient
