Effect of average grain size and sintered relative density on the imaginary part - μ" of the complex magnetic permeability of (Cu0.12Ni0.23Zn0.65) Fe2O4 system

被引:25
作者
Clausell, Carolina [1 ]
Barba, Antonio [1 ]
Nuno, Luis [2 ]
Carlos Jarque, Juan [1 ]
机构
[1] Univ Jaume 1, Dept Ingn Quim, Inst Univ Tecnol Ceram, Castellon de La Plana 12071, Spain
[2] Univ Politecn Valencia, Dept Comunicac, Escuela Tecn Super Ingn Telecomunicac, E-46022 Valencia, Spain
关键词
Ferrites; Sintered relative density; Grain size; Magnetic permeability; NI-ZN; ELECTROMAGNETIC PROPERTIES; ELECTRICAL-PROPERTIES; CU SUBSTITUTION; NICUZN FERRITES; MICROSTRUCTURE; TEMPERATURE; DENSIFICATION;
D O I
10.1016/j.ceramint.2015.11.101
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 influence of the sintered microstructure on the electromagnetic properties of Cu-doped NiZn ferrites were investigated. Two of the main variables of the thermal cycle have been modified: the maximum sintering temperature and the dwell time at that temperature, or sintering time. The evolution of the imaginary part - mu" of the complex magnetic permeability was studied as a function of relative density, grain size and amplitude of the grain size distribution of the sintered pieces. The results show that it" depends on the sintered microstructure and that there is a limiting value of the average grain size similar to 20-25 mu m) from which the electromagnetic properties of these kinds of materials worsened significantly. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
引用
收藏
页码:4256 / 4261
页数:6
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