The study of correlation between microstructure of ferrites and their complex permeability spectra

International Conference on Functional Materials and Nanotechnologies 2013

材料科学;物理学

Jankovskis, J.^1 ; Ponomarenko, N.^1 ; Mironova-Ulmane, N.^2 ; Jakovlevs, D.^1

Riga Technical University, Riga, Latvia^1

Institute of Solid State Physics, University of Latvia, Riga, Latvia^2

关键词: Complex permeability;    Complex permeability spectra;    Dimensional effects;    Mn-Zn ferrites;    Ni-Zn ferrites;    Polycrystalline ferrites;    Theoretical modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/49/1/012045/pdf
DOI  :  10.1088/1757-899X/49/1/012045

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Theoretical model for complex permeability of polycrystalline ferrite (based on effects arising from realities of typical microstructure of sample) is correlated with experimental data. In the case of NiZn-ferrites there is observed a close agreement with the model and the data; for samples of MnZn-ferrites this agreement is only for small-sized cores; for bigger ones the dimensional effects (dimensional resonance) appear and the model cease to be valid.