高抗弯强度Sm_(2)Co_(17)型烧结永磁材料研究进展  

Research progress on Sm_(2)Co_(17)-type sintered permanent magnet materials with high bendingstrength

作　　者：刘冰玉 刘恋 李雨 俞能君 孟宪赫 吴琼[1] LIU Bingyu;LIU Lian;LI Yu;YU Nengjun;MENG Xianhe;WU Qiong(College of Materials and Chemistry,China Jiliang University,Hangzhou 310000,Zhejiang,China;Mianyang Liangda Technology Innovation Service Co.,Ltd.,Mianyang 621000,Sichuan,China)

机构地区：[1]中国计量大学材料与化学学院,浙江杭州310000 [2]绵阳量大技术创新服务有限公司,四川绵阳621000

出　　处：《金属功能材料》2024年第6期137-149,共13页Metallic Functional Materials

基　　金：浙江省重点研发计划“领雁”项目(2024C01189);国家自然科学基金面上项目(52371201);四川省2023年中央引导地方科技发展资金项目(2023ZYDF034)。

摘　　要：由于各研究领域对Sm_(2)Co_(17)型烧结永磁体小型化与精密化需求的越来越迫切,如何提升磁体抗弯强度正逐步受到更广泛地关注和研究。从晶体结构和断裂机制2个方面讨论了Sm_(2)Co_(17)型烧结永磁体力学性能表现不佳的原因,进而阐述了元素掺杂、成分调控、降低磁体力学性能的各向异性、设计晶粒尺寸及分布等改善力学性能的研究进展,并指出了今后研究工作的重点和发展方向。Due to the urgent need for miniaturization and precision of Sm_(2)Co_(17)-typesintered permanent magnets in various research fields,how to improve the bending strength of magnets is gradually receiving more and more attention and research.The reasons for the poor mechanical properties of Sm_(2)Co_(17)sintered permanent magnet are discussed from two aspects of crystal structure and fracture mechanism.Further,the research progress on improving mechanical properties of Sm_(2)Co_(17)sintered permanent magnet is described,such as element doping,composition regulation,reducing the anisotropy of mechanical properties of magnets,designing grain size and distribution,and the future research focus and development direction are pointed out.

关 键 词：Sm_(2)Co_(17)型烧结永磁材料 力学性能 断裂机制 研究进展 

分 类 号：TM2[一般工业技术—材料科学与工程]