Effect of Co-Doping on the Structure, Magnetic and Hydrogen Absorption Properties of Fe17Dy2 Compound

  • Yongbin Guo
  • Lei Ma
  • Dao Wang
  • Xin Zhou
  • Lin Li
  • Jinliang Tang
Conference paper
Part of the Springer Proceedings in Energy book series (SPE)

Abstract

The Fe17Dy2Cox (x = 0.0–0.15) compounds were prepared by arc melting method, and then annealed at 800 °C for 100 h. The effect of Co-doping on the structure, magnetic and hydrogen absorption properties was studied by X-ray diffraction (XRD) and vibrating sample magnetometer (VSM), and Pressure Concentration Temperature (PCT). The results show that the unit cell volume and lattice parameter a, b and c of Fe17Dy2Cox increase firstly and then decrease synchronously with the Co content. And Fe17Dy2Cox compounds still keep the Th2Ni17-type hexagonal crystal structure and ferromagnetism with the increase of Co content. For an applied field changed from 0 to 2T, the saturation magnetization (M S ) is tuned from 62.09 Am2/kg at x = 0.0–84.3 Am2/kg at x = 0.15. The content of hydrogen abstraction for Fe17Dy2Cox (x = 0.0, 0.05, 0.1, 0.15) compounds are 0.14, 0.027, 0.034 and 0.03 wt% respectively, which is a novel property in magnet and magnetic materials.

Keywords

Fe17Dy2 compound Hydrogen absorption Magnetic properties 

Notes

Ackonwledgements

This work is supported by the National Natural Science Foundation of China (51461012), the Guangxi Key Laboratory of Information Materials (161011-Z, 161005-K, 151007-K) and the Guangxi Natural Science Foundation (2016GXNSFAA380030, 2016GXNSFGA380001).

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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Yongbin Guo
    • 1
  • Lei Ma
    • 1
    • 2
  • Dao Wang
    • 1
  • Xin Zhou
    • 1
  • Lin Li
    • 1
    • 2
  • Jinliang Tang
    • 1
  1. 1.School of Materials Science and EngineeringGuilin University of Electronic TechnologyGuilinChina
  2. 2.Guangxi Key Laboratory of Information MaterialsGuilin University of Electronic TechnologyGuilinChina

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