Magnetoelectric response and internal friction in two-layer ceramic composites based on Mn0.4Zn0.6Fe2O4 magnetostrictor and PbZr0.53Ti0.47O3 piezoelectric

被引:4
|
作者
Kalgin, A. V. [1 ,2 ]
Kobyakov, I. Y. [1 ]
机构
[1] Voronezh State Tech Univ, Voronezh 394026, Russia
[2] Voronezh State Univ, Voronezh 394018, Russia
基金
俄罗斯科学基金会;
关键词
Two-layer composite; Ferrite; Ferroelectric ceramics; Magnetoelectric coefficient; Internal friction; Domain boundary; Crystal-lattice defect;
D O I
10.1016/j.jallcom.2021.163318
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Magnetoelectric (ME) and anelastic properties of two-layer ceramic composites based on Mn0.4Zn0.6Fe2O4 magnetostrictor and PbZr0.53Ti0.47O3 piezoelectric at DC magnetic field strengths of 0-220 Oe, temperatures of 293-393 K, and volume fractions of PbZr0.53Ti0.47O3 of 0.40-0.67 were studied. It was found that a converse ME coupling coefficient alpha(31) increases with the DC magnetic field strength H-1, passes through a maximum with the volume fraction nu, and decreases as temperature T rises. Dependences of alpha(31) on H-1, nu, and T are explained using a model of effective parameters of a heterogeneous medium. The inverse correlation is revealed between alpha(31) and an internal friction at resonant frequencies. Dependences of the internal friction on H-1, nu, and T are associated with the interaction of ferroelectric domain boundaries with crystal-lattice defects. (C) 2021 Elsevier B.V. All rights reserved.
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页数:6
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