Paper Title:
Magnetic Parameters of R2Fe14B Compounds with Nanograin Structure
  Abstract

High-purity compounds R2Fe14B (R = Y, Gd, Tb, Dy, Ho and Er) were prepared by arc melting using rare-earth metals purified by vacuum distillation-sublimation. The compounds R2Fe14B are single-phase and have well-defined directional structure. Nanocrystalline structure was formed by severe plastic deformation of the samples by means of torsion for 5 turns on the Bridgeman anvil under the pressure of 4 GPa at room temperature. The performed investigations of magnetic properties of these compounds allowed us to obtain reliable quantitative data on the intrinsic magnetic parameters, such as saturation magnetization, Curie temperature, the remanent magnetization and coercive force. The enhancement of the remanent magnetization was observed for R2Fe14B in nanocrystalline states compared with the crystalline samples due to the intercrystalline exchange interactions.

  Info
Periodical
Materials Science Forum (Volumes 584-586)
Edited by
Yuri Estrin and Hans Jürgen Maier
Pages
950-954
DOI
10.4028/www.scientific.net/MSF.584-586.950
Citation
I. S. Tereshina, G. S. Burkhanov, S. V. Dobatkin, O.D. Chistyakov, E. A. Tereshina, H. Drulis, "Magnetic Parameters of R2Fe14B Compounds with Nanograin Structure", Materials Science Forum, Vols. 584-586, pp. 950-954, 2008
Online since
June 2008
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