Effect of oxygen content of Nd-Fe-B sintered magnet on grain boundary diffusion process of DyH2 dip-coating
DC Field | Value | Language |
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dc.contributor.author | Bae, Kyoung-Hoon | - |
dc.contributor.author | Lee, Seong-Rae | - |
dc.contributor.author | Kim, Hyo-Jun | - |
dc.contributor.author | Lee, Min-Woo | - |
dc.contributor.author | Jang, Tae-Suk | - |
dc.date.accessioned | 2021-09-04T10:22:10Z | - |
dc.date.available | 2021-09-04T10:22:10Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2015-11-28 | - |
dc.identifier.issn | 0021-8979 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/91866 | - |
dc.description.abstract | We investigated the effect of oxygen content on the microstructural and magnetic properties of a DyH2 dip-coated Nd-Fe-B sintered magnet. When the magnet had a low oxygen content (1500 ppm), the volume and size of the rare-earth-rich oxide (Nd-Dy-O) phase was reduced, and a uniform and continuous thin Nd-rich grain boundary phase (GBP) was well developed. The grain boundary diffusion depth of Dy increased from 200 to 350 mu m with decreasing oxygen content from similar to 3000 to 1500 ppm. The coercivity of the low-oxygen magnet increased from 19.98 to 23.59 kOe after grain boundary diffusion process (GBDP) while the remanence reduction was minimized. The formation of an fcc-NdOx Nd-rich phase in the high-oxygen magnet hindered the formation of a Nd-rich triple-junction phase and GBP. In contrast, a metallic dhcp-Nd phase, which was closely related to coercivity enhancement after GBDP, was formed in the low-oxygen magnet. (C) 2015 AIP Publishing LLC. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER INST PHYSICS | - |
dc.subject | MICROSTRUCTURAL CHARACTERISTICS | - |
dc.subject | RICH PHASE | - |
dc.subject | COERCIVITY | - |
dc.title | Effect of oxygen content of Nd-Fe-B sintered magnet on grain boundary diffusion process of DyH2 dip-coating | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Seong-Rae | - |
dc.identifier.doi | 10.1063/1.4936172 | - |
dc.identifier.scopusid | 2-s2.0-84948470440 | - |
dc.identifier.wosid | 000366316800007 | - |
dc.identifier.bibliographicCitation | JOURNAL OF APPLIED PHYSICS, v.118, no.20 | - |
dc.relation.isPartOf | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.title | JOURNAL OF APPLIED PHYSICS | - |
dc.citation.volume | 118 | - |
dc.citation.number | 20 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | MICROSTRUCTURAL CHARACTERISTICS | - |
dc.subject.keywordPlus | RICH PHASE | - |
dc.subject.keywordPlus | COERCIVITY | - |
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