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.
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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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Guo, Y., Ma, L., Wang, D., Zhou, X., Li, L., Tang, J. (2018). Effect of Co-Doping on the Structure, Magnetic and Hydrogen Absorption Properties of Fe17Dy2 Compound. In: Han, Y. (eds) Advances in Energy and Environmental Materials. CMC 2017. Springer Proceedings in Energy. Springer, Singapore. https://doi.org/10.1007/978-981-13-0158-2_2
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