| Nd_4Fe_(77.5)B_(18.5)纳米合金的磁化和反磁行为 |
| |
| 引用本文： | 刘旭波,肖耀福,董明.Nd_4Fe_(77.5)B_(18.5)纳米合金的磁化和反磁行为[J].北京科技大学学报,1997(1). |
| |
| 作者姓名： | 刘旭波 肖耀福 董明 |
| |
| 作者单位： | 北京科技大学材料系!北京，100083，北京科技大学材料系!北京，100083，北京科技大学材料系!北京，100083 |
| |
| 摘 要： | 研究了Nd4Fe77.5A18.5纳米合金的高场磁化特性及磁化场高低对其反磁化行为的影响.结果表明，在磁化场μOHmc－7T时，此合金仍没完全饱和．当磁化场Hmc高于某一临界值Hmc时，材料才表现出明显的永磁性．材料的永磁性来源于各相晶粒间的交换耦合作用．
|
| 关 键 词： | 纳米晶 磁化 反磁化 |
Magnetization and Demagnetization Behaviour for Nd_4Fe_(77.5)B_(18.5) Nanocrystalline Alloy |
| |
| Liu Xupo, Xiao Yaofu, Dong Ming.Magnetization and Demagnetization Behaviour for Nd_4Fe_(77.5)B_(18.5) Nanocrystalline Alloy[J].Journal of University of Science and Technology Beijing,1997(1). |
| |
| Authors: | Liu Xupo Xiao Yaofu Dong Ming |
| |
| Abstract: | The magnetization feature under high magnetised fields and the effect ofmagnetised field on demagnetization behaviour for Nd4Fe77.5B18.5 nanocrystalline alloy wereinvestigated. The results indicate that the alloy is not saturated magnehsed while magnetiza-tion-field u0,Hm = 7 T. The material shows typical characteristics of permanent magnet asmagnetization-field Hm is larger than a critical magnetization field Hmc. The permanentmagnet features of this alloy origine from exchange-coupling inteaction between crystallinegrains. |
| |
| Keywords: | nanocrystalline magnetization demagnetization |
| 本文献已被 CNKI 等数据库收录！ |
