Enhanced coercivity thermal stability realized in Nd-Fe-B thin films diffusion-processed by Nd-Co alloys

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• 作者：Hui Zhong^a ; ^b ; Yanqing Fu^a ; ^b ; Guojian Li^a ; Tie Liu^a ; Weibin Cui^a ; ^b ; ^{cuiweibin@epm.neu.edu.cn} ; Wei Liu^c ; Zhidong Zhang^c ; Qiang Wang^a ; ^{wangq@mail.neu.edu.cn}
• 关键词：Permanent magnet ; Core&ndash ; shell microstructure ; Magnetic properties ; Diffusion process ; Magnetic thermal stability
• 刊名：Journal of Magnetism and Magnetic Materials
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：426
• 期：Complete
• 页码：550-553
• 全文大小：788 K
• 卷排序：426

文摘

Core–shell microstructure proposed for enhancing the coercivity thermal stability. Coercivity enhanced to nearly 2 T by diffusion-processing with Nd–Co alloy. Good squareness and highly textured microstructure obtained. Nd-rich phases observed by TEM after diffusion process. Coercivity thermal stability improved with minor Co addition in grain boundary regions.