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Influence of PbO and TiO2 additives on the microstructure development and magneticproperties of Ni–Zn soft ferrites
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نویسنده
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Mirzaee O.
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منبع
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journal of king saud university - engineering sciences - 2014 - دوره : 26 - شماره : 2 - صفحه:152 -158
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چکیده
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This paper focuses on the effect of pbo and tio_2 on the magnetic properties and microstructural development of fe_2ni_0.64zn_0.36o_4 soft ferrite. ferrite was added to these oxides, ranging from 0 to 3.2 wt% in steps of 0.4 wt%. the results showed that with increasing the amount of pbo up to a certain percentage, relative density, grain size and magnetic permeability increase and then decrease. this additive caused to increase dc-resistivity, power loss and decrease in magnetic permeability and saturation magnetization. tio_2 revealed no considerable effect on the grain growth and densification. in contrast this additive due to the doping of the high valent ti^4+ ions to the lattice affects the magnetic and electrical properties noticeably. tio_2 improved the loss properties (up to 1.2 wt%) and magnetic permeability (up to 2.0 wt%) but reduced the saturation magnetization, and dc-resistivity of ferrite.
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کلیدواژه
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Ni–Zn ferrites; Grain growth; Magnetic properties
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آدرس
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semnan university, Materials Engineering Department, ایران
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پست الکترونیکی
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o_mirzaee@semnan.ac.ir
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Authors
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