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https://open.uns.ac.rs/handle/123456789/3779
Nаziv: | Influence of starting powder milling on magnetic properties of Mn-Zn ferrite | Аutоri: | Milutinov, Miodrag Nikolić, Maria-Vesna Luković, Snežana Blaž N. Labus N. Aleksić O. Živanov, Ljiljana |
Dаtum izdаvаnjа: | 1-јан-2017 | Čаsоpis: | Processing and Application of Ceramics | Sažetak: | In this paper, the influence of additional sieving and milling of starting industrial Mn-Zn powders on magnetic properties was investigated. The starting powder was milled for 60 minutes, followed by sieving through 325 and 400 meshes. The starting and milled powders were used to fabricate toroid shaped samples sintered at 1200°C for 2 hours. Structural parameters of the fabricated samples were analysed by X-ray diffraction and scanning electron microscopy. Complex permeability, core loss density, and hysteresis were measured using the modified watt-meter method. The complex permeability and hysteresis loop were modelled with a new model proposed in the paper. The core loss density was modelled with the Steinmetz empirical equation. The experimental results and calculations show the significance of the additional milling and sieving process on magnetic properties of Mn-Zn ferrite in the frequency range 0.1-10MHz. These processes increase the relative permeability about 3 times and decrease the core loss 4 times by milling of the starting powder. | URI: | https://open.uns.ac.rs/handle/123456789/3779 | ISSN: | 18206131 | DOI: | 10.2298/PAC1702160M |
Nаlаzi sе u kоlеkciјаmа: | FTN Publikacije/Publications |
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