Coercivity evolution and suppressed thermally activated defects in diffusion processed Nd-Fe-B films | |
Wei, Fulong1; Zhang, Jinsong1; Chen, Zhaohui1; Fu, Xiaoxiao2; Fan, Xiaomeng3; Yin, Xiaowei3; Jia, Peng1; Cui, Weibin1,3,4,5; Wang, Qiang1 | |
刊名 | JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS |
2019-09 | |
卷号 | 485页码:401-406 |
关键词 | Coercivity mechanism Activation volume Diffusion process Nd-Fe-B thin films Microstructure |
ISSN号 | 0304-8853 |
DOI | 10.1016/j.jmmm.2019.04.090 |
英文摘要 | The single-layer Ta(20 nm)Nd13Fe77B10(100 nm)Ta(20 nm) film was prepared and diffusion-processed by Nd25Cu75(20 nm) and Nd70Cu30(20 nm). The evolutions of microstructure and magnetic properties were comparably studied. By using same amount of diffusion layer, different coercivities were achieved. The coercivity enhancement mechanism was explained phenomenologically by surface defects of Nd2Fe14B grains and estimation of activation volume. It was found that due to the increased Nd composition in grain boundaries, the activation volume was reduced and the local anisotropy was enhanced due to the remedied surface defect. Such dependence was consistent with the coercivity changes. |
资助项目 | Natural Science Foundation of Liaoning Provence[20180510003] |
WOS研究方向 | Materials Science ; Physics |
语种 | 英语 |
出版者 | ELSEVIER SCIENCE BV |
WOS记录号 | WOS:000468738800059 |
状态 | 已发表 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.223/handle/2XXMBERH/31620] |
专题 | 兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室 |
通讯作者 | Fu, Xiaoxiao; Cui, Weibin |
作者单位 | 1.Northeastern Univ, Minist Educ, Key Lab Electromagnet Proc Mat, Shenyang 110819, Liaoning, Peoples R China 2.Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China 3.Northwestern Polytech Univ, State Key Lab Solidificat Proc, Xian 710072, Shaanxi, Peoples R China 4.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 5.Northeastern Univ, Sch Mat Sci & Engn, Dept Mat Phys & Chem, Shenyang 110819, Liaoning, Peoples R China |
推荐引用方式 GB/T 7714 | Wei, Fulong,Zhang, Jinsong,Chen, Zhaohui,et al. Coercivity evolution and suppressed thermally activated defects in diffusion processed Nd-Fe-B films[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,2019,485:401-406. |
APA | Wei, Fulong.,Zhang, Jinsong.,Chen, Zhaohui.,Fu, Xiaoxiao.,Fan, Xiaomeng.,...&Wang, Qiang.(2019).Coercivity evolution and suppressed thermally activated defects in diffusion processed Nd-Fe-B films.JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS,485,401-406. |
MLA | Wei, Fulong,et al."Coercivity evolution and suppressed thermally activated defects in diffusion processed Nd-Fe-B films".JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS 485(2019):401-406. |
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