CAS Key Laboratory of Magnetic Materials and Devices;
Ningbo Institute of Material Technology and Engineering;
Chinese Academy of Sciences;
Ningbo 315201;
China;
Chinalco Shandong Yinuowei Strong Magnetic Material Co.;
Ltd.;
Taian 271600;
China;
NdY-Fe-B; NdCe-Fe-B; Magnetic properties; Thermal stabilities; Service performances; Rare earths;