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题名: Effect of washing process on the magnetic properties of Nd-Fe-B nanoparticles prepared by reduction-diffusion method
作者: Wang, Y.;  Ahn, J.;  Kim, D.;  Ren, W. J.;  Liu, W.;  Zhang, Z. D.;  Choi, C. J.
发表日期: 2017-10-1
摘要: Nd-Fe-B nanoparticles with a particle size below 50 nm and excellent magnetic properties were obtained via a novel route which makes use of both spray drying and reduction-diffusion processes. Uniform Nd-Fe-B particles were formed by the optimization of Ca amount as a reducing agent and additional washing by milling in ethanol media. Especially, we implemented a two-step washing process which contributed to the excellent magnetic properties with high remanence and coercivity. After the removal of CaO by novel washing process, the maximum energy product (BH)(max) of the particles showed 22.1 MGOe. This value is superior to those reported in reduction-diffusion process. We used Henkel plot to assume the mechanism of magnetic interactions of the Nd-Fe-B nanoparticles. (C) 2017 Elsevier B.V. All rights reserved.
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Recommended Citation:
Wang, Y.,Ahn, J.,Kim, D.,et al. Effect Of Washing Process On The Magnetic Properties Of Nd-fe-b Nanoparticles Prepared By Reduction-diffusion Method[J]. Journal Of Magnetism And Magnetic Materials,2017,439:91-94.

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