Comparison on the coercivity enhancement of the sintered NdFeB magnets by grain boundary diffusion with Tb<sub>70</sub>Cu<sub>30</sub> powders prepared by different milling methods
نویسندگان
چکیده
Coercivity enhancement of the sintered NdFeB magnets by grain boundary diffusion (GBD) with Tb70Cu30 powders prepared different milling methods has been compared. The commercial magnetic properties Br=14.0 kG, iHc= 17.5 kOe and (BH)max= 48.4 MGOe are chosen as original magnets. coercivity increment is 7.6 9.4 after GBD alloy made high energy ball (HEBM) low-energy (LEBM), respectively. Higher can be obtained for magnet treated LEBM, mainly related to their platelet shape. shape may provide wider contact area between source surface above effect helpful in improving efficiency enhancing accordingly. As a result, Br=13.6 25.1 46.1 achieved.
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ژورنال
عنوان ژورنال: AIP Advances
سال: 2021
ISSN: ['2158-3226']
DOI: https://doi.org/10.1063/9.0000073