Ai-zhi Sun, Shen Wu, Wen-huan Xu, Jin Wang, Qian Zhang, Fu-qiang Zhai, and Alex A. Volinsky, Nd2Fe17 nanograins effect on the coercivity of HDDR NdFeB magnets with low boron content, Int. J. Miner. Metall. Mater., 19(2012), No. 3, pp. 236-239. https://doi.org/10.1007/s12613-012-0544-z
Cite this article as:
Ai-zhi Sun, Shen Wu, Wen-huan Xu, Jin Wang, Qian Zhang, Fu-qiang Zhai, and Alex A. Volinsky, Nd2Fe17 nanograins effect on the coercivity of HDDR NdFeB magnets with low boron content, Int. J. Miner. Metall. Mater., 19(2012), No. 3, pp. 236-239. https://doi.org/10.1007/s12613-012-0544-z
Ai-zhi Sun, Shen Wu, Wen-huan Xu, Jin Wang, Qian Zhang, Fu-qiang Zhai, and Alex A. Volinsky, Nd2Fe17 nanograins effect on the coercivity of HDDR NdFeB magnets with low boron content, Int. J. Miner. Metall. Mater., 19(2012), No. 3, pp. 236-239. https://doi.org/10.1007/s12613-012-0544-z
Citation:
Ai-zhi Sun, Shen Wu, Wen-huan Xu, Jin Wang, Qian Zhang, Fu-qiang Zhai, and Alex A. Volinsky, Nd2Fe17 nanograins effect on the coercivity of HDDR NdFeB magnets with low boron content, Int. J. Miner. Metall. Mater., 19(2012), No. 3, pp. 236-239. https://doi.org/10.1007/s12613-012-0544-z
Relationships between the coercivity of hydrogenation disproportionation desorption recombination (HDDR) Nd12.5Fe81.5-xCo6Bx bonded magnets and boron content were investigated. Nd2Fe17 phase with planar magnetic anisotropy is present in the microstructure when x=4at%-5.88at%, which does not reduce the coercivity of the bonded magnets. High-resolution transmission electron microscopy (TEM) images show that Nd2Fe17 phase exists in the form of nanocrystals in the Nd2Fe14B matrix. There is an exchange-coupling interaction between the two phases so that the coercivity of HDDR Nd12.5Fe81.5-xCo6Bx bonded magnets is hardly reduced with a decrease in boron content.
Relationships between the coercivity of hydrogenation disproportionation desorption recombination (HDDR) Nd12.5Fe81.5-xCo6Bx bonded magnets and boron content were investigated. Nd2Fe17 phase with planar magnetic anisotropy is present in the microstructure when x=4at%-5.88at%, which does not reduce the coercivity of the bonded magnets. High-resolution transmission electron microscopy (TEM) images show that Nd2Fe17 phase exists in the form of nanocrystals in the Nd2Fe14B matrix. There is an exchange-coupling interaction between the two phases so that the coercivity of HDDR Nd12.5Fe81.5-xCo6Bx bonded magnets is hardly reduced with a decrease in boron content.
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