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纳米晶双相交换耦合永磁体（NdDy）2（FeNb）14B/α-Fe的制备、微结构及磁性能研究
Preparation,Microstructure and Magnetic Properties of Nanocrystalline Two-Phase Enchange-Coupling Permanent Magnet (NdDy) 2(FeNb) 14 B/α-Fe
【摘要】 利用熔体快淬工艺制备了成份为Ｎｄ８．１６Ｄｙ１Ｆｅ８５．２６Ｎｂ１Ｂ４．５８合金的条带，对由（ＮｄＤｙ）２（ＦｅＮｂ）１４Ｂ和α－Ｆｅ组成的两相快淬带进行了微结构分析与表征，探讨了晶化温度和退火时间及Ｄｙ、Ｎｂ元素的添加对稀土粘结永磁体磁性能的影响，获得了矫顽力较高的交换耦合稀土粘结磁体
【Abstract】 The ribbons of Nd 8 16 Dy 1Fe 85 26 Nb 1B 4 58 alloy have been prepared by melt-spun overquenching.We have studied the crystal structure and microstructure of (NdDy) 2-(FeNb) 14 B based melt-spun ribbons consisting of a mixture of (NdDy) 2(FeNb) 14 B and α-Fe phases. The influence of annealling temperature,time and addition of Dy,Nb on the magnetic properties of exchannge-coupling bonded magnets has been also investigated.The bonded rare-earth permanent magnets with higher coercivity are obtained.
【关键词】 纳米磁性材料；
交换耦合永磁体；
稀土永磁粘结磁体；
【Key words】 nanomagnetic material； exchange-coupling permanent magnet； bonded rare earth magnet；
【Key words】 nanomagnetic material； exchange-coupling permanent magnet； bonded rare earth magnet；
【基金】 国防军事预研及其基金
- 【文献出处】 稀土 ,CHINESE RARE EARTHS , 编辑部邮箱 ,1997年05期
- 【分类号】O614.33
- 【被引频次】10
- 【下载频次】87