Research on La3+–Co2+-substituted strontium ferrite magnets for high intrinsic coercive force
作者： Xiansong Liu , Pablo Hernández-Gómez , Kai Huang , Shengqiang Zhou , Yong Wang
DOI: 10.1016/J.JMMM.2006.02.096
关键词:
摘要: M-type strontium ferrites with substitution of Sr2+ by rare-earth La3+, and a little amount Fe3+ Co2+ according to the formula Sr1−xLaxFe12−xCoxO19, are prepared ceramic process. Effects substituted La3+ on structure magnetic properties Sr1−xLaxFe12−xCoxO19 compounds have systematically been investigated X-ray diffraction (XRD), vibrating sample magnetometer (VSM) B–H hysteresis curve measurements. In our results, suitable La3+–Co2+ may remarkably increase saturation magnetization. Intrinsic coercive force (Hcj) Sr ferrite magnets is evidently increased without significant decrease in residual flux density (Br) substitution.
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