Enhanced magnetic properties and bending strength of hot deformed Nd–Fe–B magnets with Cu additions
文献类型：期刊论文
| 作者 | Yi PP ; Lin M ; Chen RJ ; Lee D ; Yan AR |
| 刊名 | Journal of Alloys and Compounds
 |
| 出版日期 | 2009 |
| 期号 | in press |
| 关键词 | Permanent magnets Rapid solidification Quenching Grain boundaries Mechanical properties Transmission electron microscopy |
| 合作状况 | 国内 |
| 中文摘要 | Commercial rapidly-quenched Nd-Fe-B ribbons blended with fine Cu powders (10–30μm) were hot pressed to obtain fully dense magnets and then die upset into highly anisotropic, oriented magnets. The effects of Cu addition on the magnetic properties and bending strength of hot deformed Nd–Fe–B magnets were investigated. It was found that the coercivity (Hcj) and maximum energy product (BH)max as well as the bending strength were enhanced significantly by Cu addition. Detailed microstructural investigations were carried out by transmission electron microscopy/high-resolution transmission electron microscopy (TEM/HRTEM). It shows that there are two types of grain boundaries in Cu-doped magnet, one is parallel and the other is trigonal. However, energy dispersive X-rays (EDX) analyses indicate that the two type intergranular phases are NdCu2. Analyses indicate that the enhanced texture of Cu-doped magnet is due to the lower melting point of the intergranular phase, leading to the enhancement in magnetic properties. Improvement of bending stress in Cu-doped magnet is related to the trigonal grain boundaries and the rheology of the intergranular phase. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-01-08 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/252]  |
| 专题 | 宁波材料技术与工程研究所_宁波所知识产出 |
| 推荐引用方式 GB/T 7714 | Yi PP,Lin M,Chen RJ,et al. Enhanced magnetic properties and bending strength of hot deformed Nd–Fe–B magnets with Cu additions[J]. Journal of Alloys and Compounds,2009(in press). |
| APA | Yi PP,Lin M,Chen RJ,Lee D,&Yan AR.(2009).Enhanced magnetic properties and bending strength of hot deformed Nd–Fe–B magnets with Cu additions.Journal of Alloys and Compounds(in press). |
| MLA | Yi PP,et al."Enhanced magnetic properties and bending strength of hot deformed Nd–Fe–B magnets with Cu additions".Journal of Alloys and Compounds .in press(2009). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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