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题名: Enhanced coercivity and grain boundary chemistry in diffusion-processed Ce13Fe79B8 ribbons
作者: Cui, Weibin;  Zhang, Tongbo;  Zhou, Xiaoqian;  Yu, Dedong;  Wang, Qiang;  Zhao, Xinguo;  Liu, Wei;  Zhang, Zhidong
发表日期: 2017-3-15
摘要: Ce13Fe79B8 ribbons were prepared by melt-spinning and diffusion-processing with minor amounts of Nd70Cu30 and Nd80Ag20 alloys. Low coercivities of similar to 0.2 T were obtained in the as-melt-spun ribbons and annealed ribbons although Ce-rich grain boundaries were observed. By diffusion process, the coercivity was increased to be over 0.7 T, due to the formation of magnetically hardened (Nd,Ce)(2)Fe14B shell. The chemistry of Ce-rich grain boundary phase was studied and face-center-cubic crystallographic structure was determined by nano-beam diffraction. The Henkel plots confirmed the enhanced magnetocrystalline anisotropy due to the formation of core/shell microstructure. (C) 2016 Elsevier B.V. All rights reserved.
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Recommended Citation:
Cui, Weibin,Zhang, Tongbo,Zhou, Xiaoqian,et al. Enhanced Coercivity And Grain Boundary Chemistry In Diffusion-processed Ce13fe79b8 Ribbons[J]. Materials Letters,2017,191:210-213.

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