Influence of milled alpha-Fe powders on structure and magnetic properties of Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets made by mechanical alloying
文献类型：会议论文
| 作者 | Liu, Z.; Chen, R. J.; Lee, D.; Yan, A. R. |
| 出版日期 | 2011 |
| 会议日期 | NOV, 2010 |
| 关键词 | PERMANENT-MAGNETS MICROSTRUCTURE COERCIVITY REMANENCE PHASE FILMS |
| 卷号 | 109 |
| 期号 | 7 |
| DOI | 10.1063/1.3565997 |
| 英文摘要 | Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets were produced by extensive milling of the mixture of crushed as-cast SmCo6.8Zr0.2 powders and 10 wt. % iron powders followed by annealing. The iron powders were added either with 600 min premilling or without premilling. The phase structures are studied by XRD patterns and thermomagnetic curves (M - T). According to the results of XRD patterns, the structures of the Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets made with the premilled Fe powders consist of SmCo7 phase and alpha-(Co,Fe) phase. However, the composite of Sm (Co,Zr)(7)/alpha-Fe nanocomposite made from Fe powders without premilling consists of SmCo7, alpha-(Co,Fe) and SmCo5 phases. The alpha-(Co,Fe) phase is further studied by XRD and thermomagnetic measurements. It indicates that different composition of alpha-(Co,Fe) phase was obtained in two Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets made with the premilled alpha-Fe powders and without premilled alpha-Fe powders. The magnetic properties of the soft phase can be tailored. The intergrain exchange coupling strength of the Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets is found to be influenced by the soft-phase grain size and properties. (c) 2011 American Institute of Physics. [doi:10.1063/1.3565997] |
| 学科主题 | Physics |
| ISSN号 | 0021-8979 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23698]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Liu, Z.,Chen, R. J.,Lee, D.,et al. Influence of milled alpha-Fe powders on structure and magnetic properties of Sm(Co,Zr)(7)/alpha-(Fe,Co) nanocomposite magnets made by mechanical alloying[C]. 见:. NOV, 2010. |
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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