论文部分内容阅读
Amorphous (Nd,Pr)13Fe80Nb1B6 ribbons were crystallized at 670-730°C for 5-25 min to study the effects of isothermal crystallization on their behavior and magnetic properties. XRD results indicate that the isothermal incubation time is 12, 5, and less than 5 min at 670, 700, and 730°C, respectively. High coercivities, with the maximum value of iHc = 1616 kA/m at 700°C for 19 min, measured by a physical property measurement system, are obtained in the crystallized ribbons. This is mainly attributed to the addition of Pr and Nb, because Pr2Fe14B has a higher anisotropic field than Nd2Fe14B, and Nb enriched in the grain boundary regions can not only reduce the exchange-coupling effects among hard grains, but also impede grain growth during the crystallization process. In addition, it should also be related to the characteristics of the furnace that the authors designed.
Amorphous (Nd, Pr) 13Fe80Nb1B6 ribbons were crystallized at 670-730 ° C for 5-25 min to study the effects of isothermal crystallization on their behavior and magnetic properties. XRD results indicate that is isothermal incubation time is 12, 5, and less than 5 min at 670, 700, and 730 ° C, respectively. High coercivities, with the maximum value of iHc = 1616 kA / m at 700 ° C for 19 min, measured by a physical property measurement system, are obtained in the crystallized This is mainly attributed to the addition of Pr and Nb, because Pr2Fe14B has a higher anisotropic field than Nd2Fe14B, and Nb enriched in the grain boundary regions can not only only reduce the exchange-coupling effects among hard grains, but also impede grain growth during the crystallization process. In addition, it should also be related to the characteristics of the furnace that the authors designed.