Converse Magnetoelectric Coefficient of Terfenol-D/PZT/Terfenol-D Laminated Magnetoelectric Composite

2011 ◽  
Vol 298 ◽  
pp. 157-162 ◽  
Author(s):  
Na Zhang ◽  
Bo Wen Wang ◽  
Wen Mei Huang
Keyword(s):  
Equivalent Circuit ◽  
Volume Ratio ◽  
Polarization Direction ◽  
Performance Parameters ◽  
Magnetization Direction ◽  
Magnetoelectric Composites ◽  
Magnetoelectric Composite ◽  
Calculation Results ◽  
Magnetoelectric Coefficient ◽  
Equivalent Circuit Method

The converse magnetoelectric coefficient (CME coefficient) of LT（The magnetization direction of Terfenol-D is vertical with the polarization direction of PZT) Terfenol-D/PZT/ Terfenol-D magnetoelectric composite is calculated by means of equivalent circuit method. The CME coefficient equation shows that ME coefficient is decided by performance parameters and the volume ratio of Terfenol-D and PZT. The calculation results predict that when the PZT thickness ratio n is 0.44, the maximum CME coefficient is 0.047G/V. And the equation is applied to the CME coefficient calculation of the same specifications and different structure of LT laminate magnetoelectric composites.

Investigation of the influence of various factors on the dielectric, piezoelectric, and magnetoelectric properties of 1-3, 3-1, and 1-1 multiferroic composites

2016 ◽  
Vol 51 (4) ◽  
pp. 507-517 ◽  
Author(s):  
I V Lisnevskaya ◽  
TG Lupeiko ◽  
KV Myagkaya
Keyword(s):  
Lead Zirconate Titanate ◽  
Volume Fraction ◽  
Coupling Efficiency ◽  
Volume Ratio ◽  
Lead Zirconate ◽  
Linear Size ◽  
Magnetoelectric Composite ◽  
Voltage Coefficient ◽  
Magnetoelectric Properties ◽  
Magnetoelectric Coefficient

Technique to fabricate magnetoelectric piezoelectric/magnetostrictive ferrite composites with 1-3, 3-1, 1-1 connectivities through binding uniformed by size and package ceramic elements was developed. Advantage of this technique is the use of piezoceramic which was previously poled under optimal conditions; this is important, because piezoelectric phase embedded in magnetoelectric composite is difficult to pole due to the high electrical conductivity of adjacent ferrite phase. The effect of piezoelectric material type, volume ratio of phases, and linear size of repeating fragment on the dielectric, piezoelectric, and magnetoelectric properties of ν PZT + (1−ν) NiCo0.02Cu0.02Mn0.1Fe1.8O4−δ ( v – volume fraction of piezoelectric, PZT – commercial grades of lead–zirconate–titanate such as PZT-36, PZTNB-1, PZTST-2, PZTTBS-2, PZT-19) composites is studied. It is shown that, with an equal volume ratio of phases, composites based on piezoceramics with high piezoelectric voltage coefficient gij (PZT-36, PZTNB-1) exhibit the most prominent magnetoelectric coupling efficiency. Decrease in the linear size of repeating fragment lΣ also contributes to an increase in Δ E/Δ H coefficient. Given other conditions being equal, 1-1 type composites commonly exhibit the highest values of magnetoelectric coefficient. Maximal values of magnetoelectric coefficient Δ E/Δ H for 0.5 PZT-36 + 0.5 NiCo0.02Cu0.02Mn0.1Fe1.8O4−δ magnetoelectric heterostructures reach ∼500 mV/(cm·Oe) at a frequency of 1 kHz.

scholarly journals Linaccalc: software for accelerating structure characteristics simulation based on equivalent circuit method

2021 ◽  
pp. 22-26
Author(s):  
S. V. Matsievskiy ◽  
V. I. Kaminskii ◽  
A. A. Gorchakov ◽  
M. V. Lalayan ◽  
M. A. Gusarova ◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Real Life ◽  
Simulation Software ◽  
Moderate Amount ◽  
Wide Range ◽  
Resource Requirements ◽  
Calculation Results ◽  
Accelerating Structure ◽  
Equivalent Circuit Method ◽  
User Friendly

Nowadays design of accelerating structures is almost exclusively done using 2.5D and 3D codes based on finite elements method. Equivalent circuit method is frequently considered limited and inconvenient to use in real-life projects. However, low resource requirements make this method attractive for wide range sweep calculations.This paper describes LinacCalc application — a user friendly accelerating structure simulation software based on the equivalent circuit method. It allows calculating characteristics of the accelerating sections with large number of cells in short time on machines with moderate amount of computational power. Core application modules are validated by comparing calculation results with ones obtained by a conventional finite element method based programs.

Recent Topics of Loss Analysis of Power Magnetics Devices based on Equivalent Circuit Method

2018 ◽  
Vol 138 (12) ◽  
pp. 585-591
Author(s):  
Kenji Nakamura ◽  
Takashi Morita ◽  
Yukihiro Yoshida
Keyword(s):  
Equivalent Circuit ◽  
Loss Analysis ◽  
Equivalent Circuit Method ◽  
Power Magnetics

scholarly journals The Magnetoelectric Effect of a Ni0.3Zn0.62Cu0.08Fe2O4 - PbFe0.5Nb0.5O3 Multilayer Composite

2014 ◽  
Vol 59 (3) ◽  
pp. 1011-1015
Author(s):  
P. Guzdek ◽  
M. Sikora ◽  
Ł. Góra ◽  
Cz. Kapusta
Keyword(s):  
Magnetic Field ◽  
Magnetoelectric Effect ◽  
Magnetic Hysteresis ◽  
Tape Casting ◽  
Casting Process ◽  
Layered Composites ◽  
Practical Applications ◽  
Magnetoelectric Composite ◽  
Sinusoidal Magnetic Field ◽  
Magnetoelectric Coefficient

Abstract The magnetoelectric effect in multiferroic materials has been widely studied for its fundamental interest and practical applications. The magnetoelectric effect observed for single phase materials like Cr2O3, BiFeO3, and Pb(Fe0.5Nb0.5)O3 is usually small. A much larger effect can be obtained in composites consisting of magnetostrictive and piezoelectric phases. This paper investigates the magnetoelectric effect of a multilayer (laminated) structure consisting of 6 nickel ferrite and 7 PFN relaxor layers. It describes the synthesis and tape casting process for Ni0.3Zn0.62Cu0.08Fe2O4 ferrite and relaxor PbFe0.5Nb0.5O3 (PFN). Magnetic hysteresis, ZFC - FC curves and dependencies of magnetization versus temperature for PFN relaxor and magnetoelectric composite were measured with a vibrating sample magnetometer (VSM) in an applied magnetic field up to 85 kOe at a temperature range of 10 – 400 K. Magnetoelectric effect at room temperature was investigated as a function of a static magnetic field (0.3 - 6.5 kOe) and the frequency of sinusoidal magnetic field (0.01 - 6.5 kHz). At lower magnetic field, the magnetoelectric coefficient increases slightly before reaching a maximum and then decreases. The magnetoelectric coefficient aME increases continuously as the frequency is raised, although this increase is less pronounced in the 1-6.5 kHz range. Maximum values of the magnetoelectric coefficient attained for the layered composites exceed about 50 mV/(Oe cm).

Sign in / Sign up

Export Citation Format

Share Document