杨友文,王永乐,杨雷,陈宇凡,蒋楠,方晓刚,高庆国,刘继广.粘结剂含量对粘结NdFeB磁体力学性能和磁性能的影响[J].稀有金属材料与工程,2022,51(8):2727~2731.[Yang Youwen,Wang Yongle,Yang Lei,Chen Yufan,Jiang Nan,Fang Xiaogang,Gao Qinguo,Liu Jiguang.Influence of Binder Content on Mechanical and Magnetic Properties of Bonded NdFeB Magnets[J].Rare Metal Materials and Engineering,2022,51(8):2727~2731.]
粘结剂含量对粘结NdFeB磁体力学性能和磁性能的影响
投稿时间:2021-07-02  修订日期:2021-09-02
中文关键词:  粘结NdFeB磁体  磁环  粘结剂含量  力学性能  磁性能
基金项目:合肥市关键技术重大研发项目(J2020G20)和安徽省高校2020质量工程项目(2020jyxm1514)
中文摘要:
      粘结剂作为粘结NdFeB磁体制备过程中的重要组成部分,其作用是提高磁粉颗粒的流动性和粘结强度,保证产品的力学性能和磁性能的稳定。采用理论与实验相结合的方法,研究了粘结剂含量对粘结NdFeB磁体力学性能和磁性能的影响。在此基础上,制备了高性能粘结NdFeB磁体。利用扫描电子显微镜(SEM)对磁体的结构和形貌进行了表征。在NIM-200C磁滞回线仪和电子万能试验机(AG-X plus)上分别测定了环形粘结NdFeB磁体(RSM)的磁性能和力学性能。结果表明,当粘结剂含量为3%(质量分数)时,粘结NdFeB磁体密度最高(5.59 g/cm3),抗压强度最高(159 MPa),磁性能最佳。
Influence of Binder Content on Mechanical and Magnetic Properties of Bonded NdFeB Magnets
英文关键词:bonded NdFeB magnets  magnetic ring  binder content  mechanical properties  magnetic properties
英文摘要:
      As an essential component in the preparation of bonded NdFeB magnets, the function of binder is to improve the fluidity of magnetic powder particles and the bonding strength, ensuring the mechanical and magnetic stability of products. The selection of binder content and its effects on the mechanical and magnetic properties of bonded NdFeB magnets were studied by combining theory with experiment. On this basis, high performance bonded NdFeB magnets were prepared. The structure and morphology of the magnet were characterized by the scanning electron microscope (SEM). The magnetic and mechanical properties of ring-shaped bonded NdFeB magnet (RSM) were measured under conditions of NIM-200C hysteresigraph and electro-mechanical universal testing machines (AG-X plus), respectively. The results demonstrate that bonded NdFeB magnet with 3wt% binder is able to achieve the highest density of 5.59 g/cm3 and the highest compressive strength of 159 MPa with the optimum value of magnetic properties.
作者单位E-mail
杨友文 合肥工业大学材料科学与工程学院 hfutyyw@hfut.edu.cn 
王永乐 合肥工业大学材料科学与工程学院 879815237@qq.com 
杨雷 合肥工业大学材料科学与工程学院 yangleiaddress@163.com 
陈宇凡 麦格昆磁磁性磁性材料有限公司  
蒋楠 合肥工业大学材料科学与工程学院  
方晓刚 合肥工业大学材料科学与工程学院  
高庆国 麦格昆磁磁性磁性材料有限公司  
刘继广 合肥工业大学材料科学与工程学院  
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