The Influence of Doping Both NiO and CoO on the Properties of Low-Loss and High Bs MnZn Ferrites

Shi Qing Yang; Pi Feng Yu; Tao Hua Liang; Qing Xue Yang; Yi Feng Meng

doi:10.4028/www.scientific.net/AMR.1096.309

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1096The Influence of Doping Both NiO and CoO on the...

The Influence of Doping Both NiO and CoO on the Properties of Low-Loss and High Bs MnZn Ferrites

Abstract:

MnZn soft ferrite materials with NiO-CoO dopant are prepared by conventional oxide technique.The influences of CoO and NiO addition on the microstructure and magnetic properties of low-loss and high Bs MnZn ferrites are investigated. The present results show that MnZn soft ferrite materials with CoO addition of 0.1wt% and NiO addition of 1.28wt% possess both homogeneous grains and high saturation magnetic flux density. The lowest loss point is located at 100°C. The valley point of power loss shifts to higher temperature with increasing of NiO dopant. The power losses decrease and sintering density increases with increase of CoO addition. The sintered MnZn ferrite materials based upon a specific sinter curve possesss excellent comprehensive properties: μi=2198 , Pcv=319 kw/m3 , Bs=540mT (T=25°C), Bs=451mT (T=100°C).

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Periodical:

Advanced Materials Research (Volume 1096)

Pages:

309-314

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1096.309

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Online since:

April 2015

Authors:

Shi Qing Yang*, Pi Feng Yu, Tao Hua Liang, Qing Xue Yang, Yi Feng Meng

Keywords:

Magnetic Property, MnZn Power Ferrite, NiO-CoO Dopant, Saturation Magnetic Induction

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