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Abstract：
Nd-Fe-B sintered magnets with different thicknesses of up to 10 mm were fabricated by combining TbH3 nanoparticles as diffusion sources and the grain boundary diffusion (GBD) technique. TbF3 microparticle-diffused magnets were also prepared for comparison. TbH3 nanoparticles diffusion increased the coercivity by 6.9 kOe for the magnets with thicknesses of 10 mm, which is 5.21 kOe larger than that of TbF3 microparticle-diffused magnets. Deeper, thicker and consecutive (Nd,Tb)(2)Fe14B layers are observed in TbH3 nanoparticle-diffused magnets compared to TbF3 microparticles, indicating the superiority of TbH3 nanoparticles in the GBD process, which can effectively inhibit the nucleation of reversed domains and thus enhance the coercivity.
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INTERMETALLICS
ISSN： 0966-9795
Year： 2019
Volume： 110
4 . 4 0 0
JCR@2022
ESI Discipline： MATERIALS SCIENCE;
ESI HC Threshold：211
JCR Journal Grade：2
Cited Count：
WoS CC Cited Count： 22
SCOPUS Cited Count： 23
ESI Highly Cited Papers on the List： 0 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 8
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