Phase Structure and Properties of Fe-Rich 2:17-Type Sm-Co Sintered Magnets

Jia, Junbo; Zhang, D. T.; Yang, Jianjun; Xie, Zhihong; Li, Y. Q.; Zhang, H. G.; Liu, W. Q.; Yue, Ming

doi:10.1109/tmag.2022.3148870

IEEE Trans. Magn.

2022

DOI: 10.1109/tmag.2022.3148870

|View full text |Cite

Phase Structure and Properties of Fe-Rich 2:17-Type Sm-Co Sintered Magnets

Junbo Jia

D. T. Zhang

Jianjun Yang

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

High‐Remanence Fe‐Rich 2:17‐Type Sm–Co Sintered Magnets Mediated via Multiscale Microstructure

Xi,

Zhang,

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

Realizing high remanence in Fe‐rich 2:17‐type Sm‐Co sintered magnets remains a challenge when Fe content exceeds 23 wt.%. Here, a record remanence of 12.42 kGs has been obtained by multi‐scale microstructure regulation strategy, based on co‐optimization from pulverizing treatment to solid solution and aging treatment. The density of sintered magnet is significantly enhanced by refining magnetic powders using the ball milling to reduce the porosity. Grain boundary precipitation phase has been eliminated via prolonging solid solution time, together with reduced Fe concentration in the cell boundaries, due to increased proportion of defected 1:3R planar Z phase. Furthermore, the proportion of 1:3R planar Z phase has been increased by greatly reducing the 2:17R’ phase during appropriately isothermal aging temperature to reduce Fe concentration in cell boundaries and increases the remanence of the magnet. Our studies deepen the understanding of the correlation among process, microstructure, and remanence, guiding the preparation of Fe‐rich 2:17‐type Sm‐Co sintered magnets with high magnetic performance.This article is protected by copyright. All rights reserved.

show abstract

High‐Remanence Fe‐Rich 2:17‐Type Sm–Co Sintered Magnets Mediated via Multiscale Microstructure

Xi,

Zhang,

et al. 2024

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

Large Coercivity and High Remanence in Iron‐Rich 2:17‐Type SmCo Magnets:Effect of Dislocation on Solid‐Solution Precursors

Hu,

He,

Liu

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

Iron‐rich 2:17‐type SmCo magnets are expected to achieve high performance and relatively low cost. However, inhomogeneous cellular structures usually exist in iron‐rich magnets, resulting in a drastic reduction in coercivity and energy product. Herein, a strategy is proposed to regulate the dislocation by decreasing the Sm content and extending the solid‐solution duration in precursor of iron‐rich SmCo magnet. High‐density dislocations in precursor contributed to 1:5H nucleation, leading to uniform cellular structures in final magnets. As a result, a remarkable intrinsic coercivity of 1.50 T and one of the highest remanences (1.24 T) are simultaneously achieved in the iron‐rich Sm25Co42Fe26Cu5Zr2 (wt%) magnet. This study provides valuable insights into the design and development of iron‐rich 2:17‐type SmCo magnets.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Phase Structure and Properties of Fe-Rich 2:17-Type Sm-Co Sintered Magnets

Cited by 2 publications

References 27 publications

High‐Remanence Fe‐Rich 2:17‐Type Sm–Co Sintered Magnets Mediated via Multiscale Microstructure

High‐Remanence Fe‐Rich 2:17‐Type Sm–Co Sintered Magnets Mediated via Multiscale Microstructure

Large Coercivity and High Remanence in Iron‐Rich 2:17‐Type SmCo Magnets:Effect of Dislocation on Solid‐Solution Precursors

Contact Info

Product

Resources

About