Investigation of the coercivity mechanism for Nd-Fe-B based magnets prepared by a new technique of strip casting
来源期刊：Rare Metals2004年第2期
论文作者：LI Bo;HU Jifan;WANG Dongling;GUO Binglin;WANG Xinlin Department of Functional Materials, Central Iron & Steel Research Institute, Beijing , China Department of Physics, Shandong University Jinan , China
文章页码：152 - 156
摘 要：<正> The coercivity mechanism of Nd-Fe-B based magnets prepared by a new technique of strip casting was investi-gated. Different from the traditional magnets, α-Fe phases are difficult to be found in Nd-Fe-B magnets prepared by stripcasting. Meanwhile, the rich-Nd phases occur not only near the grain boundaries of main phases, but also within themain-phase grains. Investigation on the magnetizing field dependence of the coercivity for the(Nd0.935Dy0.065)14.5Fe79.4B6.1magnet and the temperature dependence of the coercivity for the Nd14.5Fe79.4B6.1 magnet havebeen done. Results show that coercivities for strip casting magnets are controlled by the nucleation mechanism.
LI Bo;HU Jifan;WANG Dongling;GUO Binglin;WANG Xinlin Department of Functional Materials, Central Iron & Steel Research Institute, Beijing 100081, China Department of Physics, Shandong University Jinan 250100, China
摘 要：<正> The coercivity mechanism of Nd-Fe-B based magnets prepared by a new technique of strip casting was investi-gated. Different from the traditional magnets, α-Fe phases are difficult to be found in Nd-Fe-B magnets prepared by stripcasting. Meanwhile, the rich-Nd phases occur not only near the grain boundaries of main phases, but also within themain-phase grains. Investigation on the magnetizing field dependence of the coercivity for the(Nd0.935Dy0.065)14.5Fe79.4B6.1magnet and the temperature dependence of the coercivity for the Nd14.5Fe79.4B6.1 magnet havebeen done. Results show that coercivities for strip casting magnets are controlled by the nucleation mechanism.
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