Zirconium content induced mitigation of mechanical anisotropy in 2:17 type SmCo magnets
来源期刊：JOURNAL OF RARE EARTHS2020年第2期
论文作者：Guanghui Yan Zhuang Liu Yanping Feng Weixing Xia Chaoyue Zhang Guangqing Wang Aru Yan
文章页码：182 - 187
摘 要：The mitigation of mechanical anisotropy is observed in 2:17 type SmCo magnets by adjusting the Zr content This behavior is supposed to be closely related to the density of lamellar phase,the density of which is enhanced obviously with increasing Zr content.The other reasons which could cause the reduction of the mechanical anisotropy is discussed from the Zr-rich impurity phase to the atom substitutions and crystal lattice distortion.The observation of crack in nano scale that dearly forms angles of 60° and 90° with respect to the lamellar phase,indicates that the probable cleavage planes are crystal faces（1011） and（1010）.The results of investigation can deepen the understanding of mechanical anisotropy and cleavage fracture in the SmCo magnets.
Guanghui Yan1,2,3，Zhuang Liu2,3，Yanping Feng2，Weixing Xia2,3，Chaoyue Zhang2,3，Guangqing Wang2,3，Aru Yan2,3
1. University of Chinese Academy of Sciences2. Laboratory of Rare Earth Magnetic Functional Materials,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences3. CAS Key Laboratory of Magnetic Materials and Devices,Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences
摘 要：The mitigation of mechanical anisotropy is observed in 2:17 type SmCo magnets by adjusting the Zr content This behavior is supposed to be closely related to the density of lamellar phase,the density of which is enhanced obviously with increasing Zr content.The other reasons which could cause the reduction of the mechanical anisotropy is discussed from the Zr-rich impurity phase to the atom substitutions and crystal lattice distortion.The observation of crack in nano scale that dearly forms angles of 60° and 90° with respect to the lamellar phase,indicates that the probable cleavage planes are crystal faces（1011） and（1010）.The results of investigation can deepen the understanding of mechanical anisotropy and cleavage fracture in the SmCo magnets.
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