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http://dx.doi.org/10.4283/JMAG.2016.21.3.315

M-Zn (M = Sb, V, and Nb) Substituted Strontium Hexaferrites with Enhanced Saturation Magnetization for Permanent Magnet Applications  

Sapoletova, Nina (Corporate R&D Institute, Samsung Electro-Mechanics)
Kushnir, Sergey (Corporate R&D Institute, Samsung Electro-Mechanics)
Ahn, Kyunghan (Corporate R&D Institute, Samsung Electro-Mechanics)
An, Sung Yong (Corporate R&D Institute, Samsung Electro-Mechanics)
Choi, Moonhee (Corporate R&D Institute, Samsung Electro-Mechanics)
Kim, Jae Yeong (Corporate R&D Institute, Samsung Electro-Mechanics)
Choi, Changhak (Corporate R&D Institute, Samsung Electro-Mechanics)
Wi, Sungkwon (Corporate R&D Institute, Samsung Electro-Mechanics)
Publication Information
Journal of Magnetics / v.21, no.3, 2016 , pp. 315-321 More about this Journal
Abstract
M-Zn (M = Sb, V, Nb) substituted M-type strontium hexaferrites were prepared by a ceramic method. The phase composition, morphology and magnetic properties were studied by x-ray diffractometry, scanning electron microscopy and vibrating sample magnetometry. Saturation magnetization increases with a substitution up to 75.0 emu/g (2.5 % higher compared to unsubstituted hexaferrite) and then decreases with a further substitution. A coercive field of substituted hexaferrite powders with highest saturation magnetization is more than 3 kOe. Substituted strontium hexaferrite powders prepared in this work are a rare example of high $M_S$ compositions without doping rare-earth elements and would be a promising candidate for a permanent magnet application.
Keywords
strontium hexaferrite; substitution saturation magnetization; zinc; antimony; magnetic properties;
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