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Computation of non‐linear magneto‐electric product properties of 0–3 composites
Author(s) -
Schröder J.,
Labusch M.,
Keip M.A.,
Kiefer B.,
Brands D.,
Lupascu D. C.
Publication year - 2015
Publication title -
gamm‐mitteilungen
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.239
H-Index - 18
eISSN - 1522-2608
pISSN - 0936-7195
DOI - 10.1002/gamm.201510002
Subject(s) - magnetostriction , multiferroics , homogenization (climate) , materials science , dissipative system , composite material , coupling (piping) , composite number , magnetization , magneto , microstructure , condensed matter physics , magnet , mechanical engineering , magnetic field , physics , thermodynamics , optoelectronics , dielectric , ferroelectricity , engineering , biodiversity , ecology , quantum mechanics , biology
Abstract The magneto‐electric (ME) coupling of multiferroic materials is of high interest for a variety of advanced applications like in data storage or sensor technology. Since the ME coupling of single‐phase multiferroics is too low for technical applications, the manufacturing of composite structures becomes relevant. These composites generate the effective ME coupling as a strain‐induced product property. Several experiments on composite multiferroics showed remarkable ME coefficients that are orders of magnitudes higher than those of single‐phase materials. The present paper investigates the arising effective product properties of two‐phase ME composites by simulating the coupling behavior using a two‐scale finite element (FE 2 ) homogenization approach. By means of this method, microstructures with different volume fractions of the individual phases and associated macroscopic ME coupling coefficients are considered. We investigate the influence of different magnetization states by means of the non‐linear dissipative magnetostriction material model originally established in [1]. (© 2015 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)