Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets

Commercial N50 sintered Nd–Fe–B magnets were grain boundary diffusion (GBD) processed with TbHx powders. The diffusion temperature and time dependent microstructure and magnetic properties of the GBD processed magnets were investigated. High remanence and coercivity were obtained when the magnet was...

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Main Authors: Yang Zhao, Haibo Feng, Anhua Li, Wei Li
Format: Article
Language:English
Published: AIP Publishing LLC 2021-02-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0026389
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author Yang Zhao
Haibo Feng
Anhua Li
Wei Li
author_facet Yang Zhao
Haibo Feng
Anhua Li
Wei Li
author_sort Yang Zhao
collection DOAJ
description Commercial N50 sintered Nd–Fe–B magnets were grain boundary diffusion (GBD) processed with TbHx powders. The diffusion temperature and time dependent microstructure and magnetic properties of the GBD processed magnets were investigated. High remanence and coercivity were obtained when the magnet was GBD processed at 875 °C for 14 h; the coercivity of the magnet increased from 12.57 kOe to 22.65 kOe. The relationships between microstructure and coercivity, remanence, and thermal stability of the GBD processed magnets were analyzed and discussed.
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spelling doaj.art-a106665c1ab846d89dc8b7150f0fae772022-12-21T20:33:47ZengAIP Publishing LLCAIP Advances2158-32262021-02-01112025208025208-510.1063/5.0026389Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnetsYang Zhao0Haibo Feng1Anhua Li2Wei Li3Division of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaDivision of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaDivision of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaDivision of Functional Materials, Central Iron and Steel Research Institute, Beijing 100081, People’s Republic of ChinaCommercial N50 sintered Nd–Fe–B magnets were grain boundary diffusion (GBD) processed with TbHx powders. The diffusion temperature and time dependent microstructure and magnetic properties of the GBD processed magnets were investigated. High remanence and coercivity were obtained when the magnet was GBD processed at 875 °C for 14 h; the coercivity of the magnet increased from 12.57 kOe to 22.65 kOe. The relationships between microstructure and coercivity, remanence, and thermal stability of the GBD processed magnets were analyzed and discussed.http://dx.doi.org/10.1063/5.0026389
spellingShingle Yang Zhao
Haibo Feng
Anhua Li
Wei Li
Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
AIP Advances
title Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
title_full Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
title_fullStr Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
title_full_unstemmed Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
title_short Diffusion temperature dependent microstructure and magnetic properties of TbHx grain boundary diffused Nd–Fe–B magnets
title_sort diffusion temperature dependent microstructure and magnetic properties of tbhx grain boundary diffused nd fe b magnets
url http://dx.doi.org/10.1063/5.0026389
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