期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Origin of low coercivity of high La-Ce-containing Nd-Fe-B sintered magnets 被引量：3

原文传递
导出
摘要 The origin of low coercivity of high La-Cecontaining Nd-Fe-B sintered magnets was analyzed based on characterization of the microstructure,magnetic domain structure,and magnetization reversal process.It can be found that the coercivity of magnet decreases sharply and the ratio value of coercivity(H_(cj))to anisotropic field(H_(A))is below the theoretical value when the amount of La-Ce substitution for Nd is more than 40 wt%.The grain boundaries with poor magnetic isolation in the high La-Cecontaining Nd-Fe-B sintered magnets play an important role in reducing the coercivity of the magnet.In addition,a larger proportion of the reversible portions can be found for the magnet with a large content of La-Ce,which will lead to the low performance of the magnet.
作者 Zhi Li Yu-Qing Li Wei-Qiang Liu Dan Wu Hao Chen Wei-Xing Xia Ming Yue
机构地区 College of Materials Science and Engineering Key Laboratory of Magnetic Materials and Devices
出处 《Rare Metals》 SCIE EI CAS CSCD 2021年第1期180-184,共5页 稀有金属（英文版）
基金 financially supported by the National Key Research and Development Program of China(No.2016YFB0700902) the National Natural Science Foundation of China(No.51371002) the International S&T Cooperation Program of China(No.2015DFG52020) the Program of Top Disciplines Construction in Beijing(No.PXM2019_014204_500031)。
关键词 La-Ce-containing Nd-Fe-B sintered magnets Magnetic properties Magnetic domain Magnetization reversal
分类号 TF046.4 [冶金工程—冶金物理化学]
  • 相关文献

参考文献4

二级参考文献24

  • 1L.Q. Yu, J. Zhang, S.Q. Hu, Z.D. Han, and M. Yan, Produc- tion for high thermal stability NdFeB magnets, J. Magn. Magn. Mater., 320(2008), No. 8, p. 1427.
  • 2H.J. Wang, Z.H. Guo, A.H. Li, X.M. Li, and W. Li, Anisot-ropy of mechanical properties in sintered Nd-Fe--B magnets, J. Magn. Magn. Mater., 303(2006), p. e392.
  • 3J.F. Herbst, R2Fe14B materials: intrinsic properties and tech- nological aspects, Rev. Mod. Phys., 63(1991), No. 4, p. 819.
  • 4M.G. Zhu, W. Li, J.D. Wang, L.Y. Zheng, Y.F. Li, K. Zhang, H.B. Feng, and T. Liu, Influence of Ce content on the rec- tangularity of demagnetization curves and magnetic proper- ties of Re-Fe-B magnets sintered by double main phase al- loy method, 1EEE. Trans. Magn., 50(2014), No. 1, art. No. 100141.
  • 5H.W. Chang, C.H. Chert, C.W. Chang, C.C. Hsieh, Z.H. Guo, and W.C. Chang, High magnetic properties of nanocomposite ribbons made with mischmetals-Fe--Co-Ti-B alloys, J. Appl. Phys., 105(2009), No. 7, art. No. 07A704.
  • 6S.X. Zhou, Y.G. Wang, and R. Hoier, Investigations of mag- netic properties and microstrueture of 40Cedidymium-Fe-B based magnets, J. Appl. Phys., 75(1994), No. 10, p. 6268.
  • 7M. Okada, S. Sugimoto, C. Ishizaka, T. Tanaka, artd M. Homma, Didymium-Fe-B sintered permanent magnets, J. Appl. Phys., 57(1985), p. 4146.
  • 8E.B. Boltich, E. Oswald, M.Q. Huang, S. Hirosawa, W.E. Wallace, and E. Burzo, Magnetic characteristics of R2Fe14B systems prepared with high purity rare earths (R~Ce, Pr, Dy, and Er), J. Appl. Phys., 57(1985), No. 1,p. 4106.
  • 9D. Li and Y. Bogatin, Effect of composition on the magnetic properties of (Cel_xNdx)13.5(Fel_y~CoySiz)8oB6.5 sintered mag- nets, J. Appl. Phys., 69(1991), No. 8, p. 5515.
  • 10M.G. Taylor, B.E. Davies, and I.R. Harris, A comparative study of the sintering behaviour of NdFeB and PrFeB for permanent magnet applications, J. Magn. Magn. Mater., 242-245(2002), p. 1375.

共引文献32

同被引文献24

引证文献3

二级引证文献2

Rare Metals
2021年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部