欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用超磁致伸缩材料TbxDy1-xFe2（x≈0.3）（Terfenol-D）、压电材料PbZrxTi1-xO3（PZT）和高磁导率材料FeCuNbSiB构造了新型的层合结构.由于引入高磁导率材料FeCuNbSiB改变了Terfenol-D的内部磁场分布,并且在磁场作用下,FeCuNbSiB发生形变对Terfenol-D产生应力,增大了Terfenol-D的饱和磁致伸缩系数,使得该层合结构具有更高的磁电电压输出.利用磁荷理论,分析了FeCuNbSiB对Terfenol-D内部有效磁场分布的影响,并采用磁致伸缩材料Terfenol-D的非线性本构关系和等效电路法研究了FeCuNbSiB对其磁致伸缩系数的影响以及该层合结构的低频磁电电压系数理论计算公式.通过实验研究表明：理论值和实验值定性符合,且该结构的低频最大磁电电压系数是Terfenol-D/PZT-8H（MP）层合结构的1.3倍.同时发现,当FeCuNbSiB厚度小于180μm时,层合结构的最大磁电电压系数与高磁导率材料FeCuNbSiB的厚度呈线性关系.
英文摘要：
A brand-new magnetostrictive/piezoelectric laminated composite is presented using the giant magnetostrictive Terfenol-D,piezoelectric PZT and high-permeability FeCuNbSiB.Since the high-permeability FeCuNbSiB changes the effective magnetic field in the Terfenol-D and the deformed FeCuNbSiB applies a stress to the Terfenol-D in an external magnetic field,thus the saturation magnetostrictive coefficient of Terfenol-D is enhanced,resulting in a higher magnetoelectric voltage output for the composite.Based on the equivalent magnetic charge theory,the effect of the FeCuNbSiB on the effective magnetic field in the Terfenol-D is analyzed,and the magnetostrictive coefficient of Terfenol-D and the theoretical formula of low-frequency magnetoelectric voltage coefficient are derived based on the nonlinear constitutive model of magnetostrictive material and the equivalent circuit method.The analytical results accord with the experiments qualitatively,and the magnetoelectric voltage of the composite is 1.3 times as high as that of the Terfenol-D/PZT-8H（MP） composite.The experimental results indicate that the thickness of FeCuNbSiB has a great influence on magnetoelectric property.The magnetoelectric voltage coefficient increases nearly linearly with the increase of the thickness of FeCuNbSIB until 180μm.
同期刊论文项目
同项目期刊论文
Resonant magnetoelectric response of magnetostrictive/piezoelectric laminate composite in considerat
Field directional dependences of magnetoelectric behaviors in magnetostrictive/piezoelectric laminat
Composite magnetoelectric transducer of terfenol-D and Pb(Zr,Ti)O 3 plates bonded on an elastic subs
Enhanced magnetoelectric effects in laminate composite of Terfenol-D/Pb(Zr,Tio)3 with high-permeabil
Enhanced magnetoelectric effects in laminate composites of Terfenol-D/Pb(Zr,TiO)3 with high-permeabi
Conversion efficiency enhanced photovoltaic device with nanohole arrays in antireflection coating la
Enhanced magnetoelectric effects in laminate composites of Terfenol-D/Pb(Zr, TiO)(3) with high-perme
Energy harvesting from mechanical vibrations using multiple magnetostrictive/piezoelectric composite
A rotation energy harvester employing cantilever beam and magnetostrictive/piezoelectric laminate tr
Magnetoelectric Transducer Employing Piezoelectric Ceramic/Ferromagnetic Alloy/High-Permeability FeC
Effect of Permeability and Piezomagnetic Coefficient on Magnetostrictive/Piezoelectric Laminate Comp
Modeling, characterization and fabrication of vibration energy harvester using Terfenol-D/PZT/Terfen
Field Directional Dependences of Magnetoelectric Behaviors in Magnetostrictive/Pizeoelectric Laminnt
Composite Magnetoelectric Transducer of Terfenol-D and Pb(Zr,Ti)O-3 Plates Bonded on an Elastic Subs
Magnetoelectric Performances in Composite of Piezoelectric Ceramic and Ferromagnetic Constant-Elasti
Dynamic Magneto-mechanical Behavior of an Iron-nickel-based Ferromagnetic Alloy with Constant Elasti
High sensitivity magnetic sensor consisting of ferromagnetic alloy, piezoelectric ceramic and high-p
位置：