系统研究了添加Ti和C对NdPrFeB合金厚带晶化过程及磁性能的影响.结果表明,Ti的添加可以抑制合金中(Nd,Pr)2Fe23B3亚稳相的生成并细化晶粒从而极大地提高矫顽力；而同时添加Ti和C,随着C含量的增加,矫顽力逐渐降低而剩磁升高.最佳热处理后(Nd0.4Pr0.6)9Fe72Ti4B11C4合金的磁性能达到Jr为0.88 T,Hcj为618 kA/m,(BH)max为109.8 kJ/m3.
Effects of Ti and C addition on crystallization process and magnetic properties of NdPrFeB thick ribbons were investigated.The results show that doping of Ti suppresses the formation of (Nd,Pr)2Fe23B3 metastable phase and refines grains of the alloys and increases coercivity significantly.In the case of co-addition of Ti and C,the coercivity is decreased but the remanence is enhanced with increasing of C content.The magnetic properties of Jr=0.88 T,Hcj=618 kA/m and (BH)max=109.8 kJ/m3 are achieved in the (Nd0.4Pr0.6)9Fe72Ti4B11C4 ribbons after optimal annealing.
参考文献
| [1] | Manaf A et al.[J].Journal of Magnetism and Magnetic Materials,1993,128:302. |
| [2] | Chen Z M et al.[J].Journal of Magnetism and Magnetic Materials,1998,i86:41. |
| [3] | Ping D H et al.[J].Acta Materialia,1999,47(18):4641. |
| [4] | Coehoorn R et al.[J].Journal of Magnetism and Magnetic Materials,1989,80:101. |
| [5] | Hirosawa S et al.[J].Journal of Applied Physics,1993,73:6488. |
| [6] | Ohkubo T et al.[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,449-451:435. |
| [7] | Branagan D J;McCallum R W .[J].Journal of Alloys and Compounds,1995,230:67. |
| [8] | Chen Z et al.[J].Journal of Alloys and Compounds,2001,327:201. |
| [9] | Branagan D J;McCallum R W .[J].Journal of Alloys and Compounds,1996,245:15. |
| [10] | Kelly P.E.;O'Grady K. .Switching mechanisms in cobalt-phosphorus thin films[J].IEEE Transactions on Magnetics,1989(5):3881-3883. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%