지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2021.7
- 수록면
- 98 - 98 (1page)
이용수
이 논문의 연구 히스토리 (9)
2021
High-performance Ce-substituted Nd-Fe-B hot-deformed magnets produced by dual alloy method
Ga-Yeong Kim
,
Tae-Hoon Kim
,
Hee-Ryoung Cha
외 2명
한국자기학회 학술연구발표회 논문개요집
2021.11
학술대회자료
Influence of grain boundary diffusion process on grain alignment and magnetic properties of Nd lean Nd-Fe-B hot-deformed magnets
Ga-Yeong Kim
,
Tae-Hoon Kim
,
Hee-Ryoung Cha
외 2명
한국자기학회 학술연구발표회 논문개요집
2021.07
학술대회자료
2020
Coercivity enhancement of (Nd, M)-Fe-B hot-deformed magnet by post-annealing treatment
Ga-Yeong Kim
,
Hee-Ryoung Cha
,
Tae-Hoon Kim
외 3명
한국자기학회 학술연구발표회 논문개요집
2020.11
학술대회자료
Effect of post-annealing on the coercivity and microstructure of (Nd, Ce) -Fe-B hot-deformed magnet
Ga-Yeong Kim
,
Hee-Ryoung Cha
,
Dong-Hwan Kim
외 2명
한국자기학회 학술연구발표회 논문개요집
2020.07
학술대회자료
Effect of Ce and La Substitution on the Microstructure and Magnetic Properties of Hot-deformed Nd-Fe-B Magnets
Ga-Yeong Kim
,
Hee-Ryoung Cha
,
Youn-Kyoung Baek
외 4명
Journal of Magnetics
2020.06
학술저널
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
Heavy rare earth elements such as Dy and Tb should be added for coercivity enhancement of Nd-Fe-B magnets. However, cost problem become more serious because the natural abundance of Dy and Tb comparing with Nd is lower than 10%. Therefore, many research was focused on modifying the microstructure to reduce the use of Heavy rare earth elements. On the other hand, Ce and La is the most abundant rare earth elements and constitute is more than 70% of the total rare earth element, and the price of Ce is about 10 times lower than Nd. Hence, it is a technologically interesting challenge to develop high-performance Nd-lean Nd-Fe-B magnets by substitution of Ce and La for Nd, which is also quite important from an industrial viewpoint. However, the magnetic properties of Nd-Fe-B magnets could be drastically deteriorated after replacing Nd with Ce and La due to inferior intrinsic magnetic properties of Ce<sub>2</sub>Fe<sub>14</sub>B (4πM = 11.7 kG, Ha = 26 kOe) and La<sub>2</sub>Fe<sub>14</sub>B (4πM = 13.8 kG, Ha = 20 kOe) compared to Nd<sub>2</sub>Fe<sub>14</sub>B (4πM = 16 kG, Ha = 73 kOe). Melt-spinning technique has been employed to obtain ultrafine-grained magnetic powders which have high coercivity due to the ultrafine grains. The melt-spun powder, which has Isotropic nanocrystalline, is subjected to hot-deformation (hot-pressing and subsequent die-upset) process in order to induce grain alignment along the c-axis parallel to the pressing direction, increasing the (BH)max. The mechanism of texture formation was well known that grains grew along the [010] and [100] axis into platelet shape and the [001] axis of platelet grains were oriented parallel to the pressing direction by the interface-controlled solution-precipitation-creep process and grain boundary slidin ... 전체 초록 보기
목차
등록된 정보가 없습니다.
참고문헌 (0)
참고문헌 신청함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
The effect of grain size, grain boundary materials, and grain boundary thickness on the magnetic properties of Fe-based magnetic materials
한국자기학회 학술연구발표회 논문개요집
2019 .11
-
Microstructure of Grain Boundary Diffusion Processed Nd-Fe-B Sintered Magnets : Microstructural Characteristics of HRE-rich Shells and Grain Boundary Phases
한국자기학회 학술연구발표회 논문개요집
2020 .11
-
Influence of Grain Boundary Diffusion with Cu-based Alloy on Magnetic Impurities in Nd-Ce-Fe-B Magnets
한국자기학회 학술연구발표회 논문개요집
2024 .05
-
Effect of Ce and La Substitution on the Microstructure and Magnetic Properties of Hot-deformed Nd-Fe-B Magnets
Journal of Magnetics
2020 .06
-
Effect of NdAl doping on grain boundary diffusion in Ce-substituted Hot deformed Nd-Ce-Fe-B magnets
한국자기학회 학술연구발표회 논문개요집
2024 .11
-
Development of High Performance (L)RE-Fe-B Permanent Magnets by Grain Boundary Engineering
한국자기학회 학술연구발표회 논문개요집
2020 .07
-
Effects of Yttrium and Cerium co-substitution on Structures and Magnetic Properties of Nanocrystalline Nd-Fe-B Magnets
Journal of Magnetics
2022 .06
-
Improvement of magnetic properties of Ce-substituted hot deofrmed magnets through grain boundary diffusion process
한국자기학회 학술연구발표회 논문개요집
2024 .05
-
Study on Microstructure and Magnetic Properties of Grain Boundary Diffusion Processed Nd-Fe-B Sintered Magnet
한국자기학회 학술연구발표회 논문개요집
2024 .05
-
Effect of spray coating method on the magnetic properties of Nd-Fe-B sintered magnets with grain boundary diffusion
한국자기학회 학술연구발표회 논문개요집
2022 .11
-
Magnetic properties and microstructure of hot-deformed RE-Fe-B magnets (RE = Nd, Ce, La)
한국자기학회 학술연구발표회 논문개요집
2018 .11
-
High-performance Ce-substituted Nd-Fe-B hot-deformed magnets produced by dual alloy method
한국자기학회 학술연구발표회 논문개요집
2021 .11
-
Microstructures and magnetic properties of Hot-deformed dual-main-phase Nd-Ce-Fe-B magnets
한국자기학회 학술연구발표회 논문개요집
2024 .05
-
High-performance Ce-substituted (Nd,Ce)-Fe-B hot-deformed magnets fabricated from amorphous melt-spun powders
한국자기학회 학술연구발표회 논문개요집
2022 .05
-
Enhancement of magnetic properties of Nd–Fe–B sintered magnets by grain boundary diffusion of LRE-Al-Cu(LRE=Nd, Pr, La, Ce) low melting alloy
한국자기학회 학술연구발표회 논문개요집
2023 .05
-
Improved magnetic performance of Nd-Fe-B sintered magnet by effective grain boundary diffusion using hydrogenated Tb-Al alloy
한국자기학회 학술연구발표회 논문개요집
2023 .05
-
Enhancement of magnetic properties of Fe-rich Sm(Fe0.8C0.2)11 Ti compounds by grain boundary diffusion process
한국자기학회 학술연구발표회 논문개요집
2019 .11
-
Magnetic Performance and Microstructures of Hot-deformed Nd-Ce-Fe-B Magnets
한국자기학회 학술연구발표회 논문개요집
2022 .11
-
Magnetic Performance and Microstructures of Hot-deformed Nd-Ce-Fe-B Magnets
한국자기학회 학술연구발표회 논문개요집
2022 .05
-
Investigation of Microstructures and Magnetic Properties of Hot-Deformed Nd-Ce-Fe-B Magnets with Single and Dual Main Phases
한국자기학회 학술연구발표회 논문개요집
2024 .11
이 논문의 저자 정보
최근 본 자료
댓글(0)
0