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| Crystallization behaviour and high coercivity of （Nd,Pr）（13）Fe（80）Nb1B6 melt-spun ribbons | |
| 作者单位： | GUO Pengju(Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;Ningbo Institute of Materials of Technology and Engineering, Chinese Academy);LIU Xincai,PAN Jing(Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;Ningbo Institute of Materials of Technology and Engineering, Chinese Academy ofSciences, Ningbo 315040, China);XU Feng(Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China);LI Yong,CUI Ping(Ningbo Institute of Materials of Technology and Engineering, Chinese Academy ofSciences, Ningbo 315040, China) |
| 基金项目： | 国家自然科学基金，the National Basic Research Foundation，浙江省科技厅资助项目，浙江省自然科学基金，the Research and Development Program of Ningbo Bureau of Science and Technology，K.C.Wong Magna Found in Ningbo University |
| 摘 要： | |
| 关 键 词： | 结晶行为 丝带 Nd2Fe14B Pr2Fe14B 熔纺 钕 镨 测量系统 |
Crystallization behaviour and high coercivity of (Nd,Pr)13Fe80Nb1B6 melt-spun ribbons |
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| GUO Pengju,LIU Xincai,PAN Jing,XU Feng,LI Yong,CUI Ping. Crystallization behaviour and high coercivity of (Nd,Pr)13Fe80Nb1B6 melt-spun ribbons[J]. Rare Metals, 2009, 28(3) | |
| Authors: | GUO Pengju LIU Xincai PAN Jing XU Feng LI Yong CUI Ping |
| Affiliation: | 1. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;Ningbo Institute of Materials of Technology and Engineering, Chinese Academy 2. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;Ningbo Institute of Materials of Technology and Engineering, Chinese Academy ofSciences, Ningbo 315040, China 3. Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China 4. Ningbo Institute of Materials of Technology and Engineering, Chinese Academy ofSciences, Ningbo 315040, China |
| Abstract: | Amorphous (Nd,Pr)13Fe80Nb1B6 ribbons were crystallized at 670-730℃ 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℃, respectively. High eoercivities, with the maximum value of iHc = 1616 kA/m at 700℃ for 19 min, measured by a physical 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. |
| Keywords: | Nd-Fe-B isothermal crystallization coercivity melt-spun ribbons Pr substitution |
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