Dielectric, magnetoelectric and magnetodielectric properties in CMFO-SBN composites

被引：20
作者：
Jigajeni, S. R. [1 ]
Tarale, A. N. [2 ]
Salunkhe, D. J. [2 ]
Joshi, P. B. [2 ]
Kulkarni, S. B. [3 ]
机构：
[1] Walchand Inst Technol, Solapur, India
[2] Solapur Univ, Sch Phys Sci, Solapur 413255, India
[3] Inst Sci, Dept Phys, Bombay 400032, Maharashtra, India
来源：
CERAMICS INTERNATIONAL | 2013年 / 39卷 / 03期
关键词：
Dielectrics; ME composites; Magnetocapacitance; CERAMICS;
D O I：
10.1016/j.ceramint.2012.08.081
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The paper reports synthesis of Sr0.5Ba0.5Nb2O6 (SBN) and Co1.2-xMnxFe1.8O4 (CMFO) via ceramic and hydroxide co-precipitation routes respectively. The nanopowders of SBN-CMFO0.1 (MSBN0.1) and SBN-CMFO0.3 (MSBN0.3) are compacted to form the desired magnetoelectric (ME)/magnetodielectric (MD) composites. The Bi2O3 is used as a sintering aid. The Bi2O3 at three weight percent is observed to cause agglomeration of SBN and CMFO particles and improve the magneto-mechanical coupling. The composites are investigated for their ferroelectric, ferromagnetic, dielectric, magnetoelectric (ME) and magnetodielectric (MD) properties. The results on the magnetocapacitance (M-c) are observed interesting and could be correctly understood in terms of the stress induced variation in the dielectric constant. The MC is observed to remain fairly constant between 10 to 500 kHz and possess a useful magnitude of M-c nearly 4%. (c) 2012 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码：2331 / 2341
页数：11
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