Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김종렬 | - |
dc.date.accessioned | 2023-07-12T01:36:22Z | - |
dc.date.available | 2023-07-12T01:36:22Z | - |
dc.date.issued | 2019-07 | - |
dc.identifier.citation | ACS Applied Materials and Interfaces, v. 11, NO. 29, Page. 26222-26227 | - |
dc.identifier.issn | 1944-8244;1944-8252 | - |
dc.identifier.uri | https://pubs.acs.org/doi/10.1021/acsami.9b02966 | en_US |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/182982 | - |
dc.description.abstract | Rare-earth-based core shell spring nanomagnets have been intensively studied in the permanent magnet industry. However, the inherent agglomeration characteristics of zero-dimensional (0-D) magnetic nanoparticles are an issue in practical fabrication of magnetic nanocomposites due to deterioration in exchange-coupling interactions, resulting in inferior magnetic performance. Here, with an aim to overcome the structural limitations, we report a new type of SmCo/FeCo core shell nanomagnet with a well-dispersed one-dimensional (1-D) structure prepared by a combination of electrospinning and electroless plating processes. An FeCo layer with a tailored thickness on nanoscale SmCo was produced to achieve a sufficient exchange-coupling effect. The influence of electroless plating time on the microstructure of fibers was discussed, and comparisons were made as a function of the magnet shape. A 1-D SmCo/FeCo spring nanomagnet having a core diameter ranging from 150 to 200 nm and a shell thickness of 15-20 nm showed a potent exchange coupling effect compared with its 0-D counterpart. This effectively reduced self-aggregation and further showed a remarkable enhancement in (BH)max (above 45.7%). We think that this novel structure marks a new era in the exchange-spring magnet industry and may overcome the limitations of traditional core shell nanomagnets. | - |
dc.description.sponsorship | Future Materials Discovery Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT & Future Planning [NRF-2016M3D1A1027836]; National Research Foundation of Korea (NRF) - Korea government (MSIT) [2015R1A5A1037548] | - |
dc.language | en | - |
dc.publisher | American Chemical Society | - |
dc.subject | permanent magnet | - |
dc.subject | Sm2Co17/FeCo nanocomposite magnets | - |
dc.subject | core-shell nanomagnet | - |
dc.subject | exchange-coupling effect | - |
dc.subject | shape tuning | - |
dc.subject | electroless plating | - |
dc.title | Exchange-Coupling Interaction in Zero- and One-Dimensional Sm2Co17/FeCo Core-Shell Nanomagnets | - |
dc.type | Article | - |
dc.relation.no | 29 | - |
dc.relation.volume | 11 | - |
dc.identifier.doi | 10.1021/acsami.9b02966 | - |
dc.relation.page | 26222-26227 | - |
dc.relation.journal | ACS Applied Materials and Interfaces | - |
dc.contributor.googleauthor | Lee, Jimin | - |
dc.contributor.googleauthor | Kim, Jiwon | - |
dc.contributor.googleauthor | Kim, Danbi | - |
dc.contributor.googleauthor | Lee, Gyutae | - |
dc.contributor.googleauthor | Oh, Yeong-Been | - |
dc.contributor.googleauthor | Hwang, Tae-Yeon | - |
dc.contributor.googleauthor | Lim, Jae-Hong | - |
dc.contributor.googleauthor | Cho, Hong-Baek | - |
dc.contributor.googleauthor | Kim, Jongryoul | - |
dc.contributor.googleauthor | Choa, Yong-Ho | - |
dc.sector.campus | E | - |
dc.sector.daehak | 공학대학 | - |
dc.sector.department | 재료화학공학과 | - |
dc.identifier.pid | jina | - |
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