Rare earth permanent magnets prepared by hot deformation process
Chen Ren-Jie1, †, Wang Ze-Xuan1, Tang Xu1, Yin Wen-Zong1, Jin Chao-Xiang1, Ju Jin-Yun1, Lee Don2, Yan A-Ru1, ‡
       

BSE image on a polished cross-section shows the electrically insulating Dy–F rich inclusions (bright area) within the MQU-F flakes (dark areas). The white arrows indicate the pressing direction.[112]