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Nickel-zinc ferrite material and preparation method thereof
The invention relates to a nickel-zinc ferrite soft-magnetic material for separating magnetic pieces of wireless charging transmitting terminal and receiving terminal coils, and a preparation method thereof. Raw materials of the nickel-zinc ferrite soft-magnetic material comprise a main component and an auxiliary component, and the main component comprises, by respective reference substances, 49.6-50.5mol% of Fe2O3, 12.5-13.5mol% of NiO, 29.2-32mol% of ZnO, and 7-9mol% of CuO. The auxiliary component comprises, by respective reference substances, 0.01-0.1wt% of MoO3 and 0.01-0.05wt% of Nd2O3. The nickel-zinc ferrite is prepared through a traditional oxide method; in a frequency region of 100-200KHz, the saturated magnetic induction intensity Bs is not smaller than 380mT, the coercive force Hc is not greater than 30A/m, and the magnetic permeability [mu]' is not smaller than 700 and not greater than 900; and the power loss Pcv of the material at normal temperature under 50KHz and 150mT is not smaller than 330mW/cc and not greater than 380Mw/cc.
Nickel-zinc ferrite material and preparation method thereof
The invention relates to a nickel-zinc ferrite soft-magnetic material for separating magnetic pieces of wireless charging transmitting terminal and receiving terminal coils, and a preparation method thereof. Raw materials of the nickel-zinc ferrite soft-magnetic material comprise a main component and an auxiliary component, and the main component comprises, by respective reference substances, 49.6-50.5mol% of Fe2O3, 12.5-13.5mol% of NiO, 29.2-32mol% of ZnO, and 7-9mol% of CuO. The auxiliary component comprises, by respective reference substances, 0.01-0.1wt% of MoO3 and 0.01-0.05wt% of Nd2O3. The nickel-zinc ferrite is prepared through a traditional oxide method; in a frequency region of 100-200KHz, the saturated magnetic induction intensity Bs is not smaller than 380mT, the coercive force Hc is not greater than 30A/m, and the magnetic permeability [mu]' is not smaller than 700 and not greater than 900; and the power loss Pcv of the material at normal temperature under 50KHz and 150mT is not smaller than 330mW/cc and not greater than 380Mw/cc.
Nickel-zinc ferrite material and preparation method thereof
LIANG DIFEI (author) / JIANG WEIHAI (author) / LI WEIJIA (author) / ZHOU YIRAN (author) / WU JIANWEI (author) / ZHANG JIE (author)
2015-09-16
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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