A search for Sm-based novel alloys for high temperature permanent magnet applications

寻找用于高温永磁应用的钐基新型合金

• 批准号: 21K14397
• 负责人: TOZMANKARANIKOLAS Pelin
• 金额: $ 3万
• 依托单位: National Institute for Materials Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Early-Career Scientists
• 财政年份: 2021
• 资助国家: 日本
• 起止时间: 2021-04-01 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-21K14397/
• 关键词: Thin film; Bulk; Coercivity; Phase diagram; Crystallography; Magnetism; SmFe12; Magnetic properties; Microstructure; Sm-based alloys; Magnetization; Anisotropy field; Permanent magnet; Rare earth

The second phase of the research proposal aims to develop the Sm-Fe-V phase diagram, which will enable the determination of the equilibrium between the hard magnetic SmFe12 phase and the liquid phase. This equilibrium is essential for achieving magnetic isolation of hard magnetic grains in the microstructure, which is a key factor in obtaining high coercivity. In pursuit of this goal, we conducted a systematic investigation of the magnetic, microstructure, and crystallographic properties of anisotropic SmxFebalV20 for for 5.7<x<10 and 0<y<30. By combining these results with a computationally modeled Sm-Fe-V phase diagram, we can uncover the relationship between the intergranular phases and the coercivity.

该研究计划的第二阶段旨在开发Sm-Fe-V相图，这将能够确定硬磁SmFe12相与液相之间的平衡。这种平衡对于实现微结构中硬磁晶粒的磁隔离至关重要，这是获得高矫顽力的关键因素。为了实现这一目标，我们对各向异性 SmxFebalV20 的磁性、微观结构和晶体学性质进行了系统研究，范围为 5.7<x<10 和 0<y<30。通过将这些结果与计算模型的 Sm-Fe-V 相图相结合，我们可以揭示晶间相与矫顽力之间的关系。

项目成果

Development of Co-lean (Sm,Y)(Fe,Co,Ti)12 compounds with large saturation magnetization

大饱和磁化强度贫钴(Sm,Y)(Fe,Co,Ti)12化合物的研制

• DOI: 10.35848/1882-0786/ac5b34
• 发表时间: 2022
• 期刊: Applied Physics Express
• 影响因子: 2.3
• 作者: Tozman Pelin;Sepehri-Amin Hossein;Tang Xin;Ohkubo Tadakatsu;Hono Kazuhiro
• 通讯作者: Hono Kazuhiro

Understanding the Effect of V on the Intrinsic Magnetic Properties of Sm(Fe,V)12 for Permanent Magnet Applications

了解 V 对永磁应用中 Sm(Fe,V)12 固有磁性的影响

• 发表时间: 2022
• 作者: Tozman P.;Fukazawa T.;Ogawa D.;Sepehri-Amin H.;Bolyachkin A.;Miyake T.;Hirosawa S.;Hono K.;Takahashi Y.K.;Pelin Tozman Karanikolas
• 通讯作者: Pelin Tozman Karanikolas

Peculiar behavior of V on the Curie temperature and anisotropy field of SmFe12-xVx compounds

V对SmFe12-xVx化合物居里温度和各向异性场的特殊行为

• DOI: 10.1016/j.actamat.2022.117928
• 发表时间: 2022
• 期刊: Acta Materialia
• 影响因子: 9.4
• 作者: Tozman P.;Fukazawa T.;Ogawa D.;Sepehri-Amin H.;Bolyachkin A.;Miyake T.;Hirosawa S.;Hono K.;Takahashi Y.K.
• 通讯作者: Takahashi Y.K.

Investigation of the effect of V on the intrinsic and extrinsic magnetic properties of Sm(Fe,V)12 by model thin film

通过模型薄膜研究V对Sm(Fe,V)12内、外磁性能的影响

• 发表时间: 2022
• 作者: P. Tozman;H. Sepehri Amin;A. Taichi;A. Bolyachkin;T. Fukazawa;T. Miyake;S. Hirosawa,K. Hono;Y. Takahashi
• 通讯作者: Y. Takahashi

The Curie temperature enhancement and anisotropy preservation in SmFe12-xVx compounds by V substitution

V取代提高SmFe12-xVx化合物的居里温度并保持各向异性

• 发表时间: 2022
• 作者: P. Tozman;T. Fukazawa;D. Ogawa;H. Sepehri Amin;A. Bolyachkin;T. Miyake;Y. Takahashi
• 通讯作者: Y. Takahashi