Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김종렬 | - |
dc.date.accessioned | 2021-08-27T06:06:43Z | - |
dc.date.available | 2021-08-27T06:06:43Z | - |
dc.date.issued | 2020-09 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 10, no. 1, Article no. 15929, 9pp | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/s41598-020-72608-0 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/164595 | - |
dc.description.abstract | Recent studies on next-generation permanent magnets have focused on filling in the gap between rare-earth magnets and rare-earth-free magnets, taking into account both the cost-effectiveness and magnetic performance of the magnetic materials. As an improved rare-earth-free magnet candidate, here, Ca-substituted M-type Sr-lean hexaferrite particles within a nano- to micro-scale regime, produced using an ultrasonic spray pyrolysis method, are investigated. Theoretically, the maximum coercivity (Hc) can be achieved in submicron Sr-ferrite crystals (i.e., 0.89 μm). The plate-like resultants showed a significant enhancement in Hc, up to a record high of 7880.4 Oe, with no deterioration in magnetization (M: 71-72 emu/g). This resulted in more favorable magnetic properties than those of the traditional Sr-La-Co ferrites. On the basis of microstructural analysis and fitting results based on the law of approach to saturation method, the Ca-substitution effects on the change in size and anisotropic characteristics of the ferrite particles, including pronounced lateral crystal growth and a strong increase in magnetocrystalline anisotropy, are clearly demonstrated. The cost-effective, submicron, and Ca-substituted Sr-ferrite is an excellent potential magnet and moreover may overcome the limitations of traditional hard magnetic materials. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | Materials science | en_US |
dc.subject | Nanoscience and technology | en_US |
dc.subject | Physics | en_US |
dc.title | Anisotropic characteristics and improved magnetic performance of Ca-La-Co-substituted strontium hexaferrite nanomagnets | en_US |
dc.type | Article | en_US |
dc.relation.no | 1 | - |
dc.relation.volume | 10 | - |
dc.identifier.doi | 10.1038/s41598-020-72608-0 | - |
dc.relation.page | 15929-15937 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Lee, Jimin | - |
dc.contributor.googleauthor | Lee, Eun Jae | - |
dc.contributor.googleauthor | Hwang, Tae-Yeon | - |
dc.contributor.googleauthor | Choa, Yong-Ho | - |
dc.contributor.googleauthor | Kim, Jongryoul | - |
dc.relation.code | 2020051242 | - |
dc.sector.campus | E | - |
dc.sector.daehak | COLLEGE OF ENGINEERING SCIENCES[E] | - |
dc.sector.department | DEPARTMENT OF MATERIALS SCIENCE AND CHEMICAL ENGINEERING | - |
dc.identifier.pid | jina | - |
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