Effects of silicon and aluminum additions on magnetic properties of rapidly quenched Nd‐Fe‐B permanent magnets
Effects of silicon and aluminum additions on magnetic properties of rapidly quenched Nd‐Fe‐B permanent magnets
复制标题
添加硅和铝对快淬Nd-Fe-B永磁体磁性能的影响
DOI：
10.1063/1.341165
复制
发表时间：
1988
影响因子：
3.2
通讯作者：
M. Fujikura
中科院分区：
文献类型：
--
作者：
F. Matsumoto;H. Sakamoto;M. Komiya;M. Fujikura
研究了Si和Al对快淬Nd-Fe-B基合金永磁体磁性能的影响。向Nd-Fe-B基合金中添加Si改善了磁性能：其尤其将最大磁能积（BH）max提高至20 MG Oe，剩磁Br超过9 kG，并且降低了固有矫顽力iHc。Si的加入还提高了居里温度，降低了可逆温度系数。与仅添加Si相比，Si和Al的组合添加扩展了轮表面速度范围，以获得（BH）max>15 MG Oe和Br>9 kG。讨论了高性能的起源。
The effects of Si and Al on magnetic properties of melt‐spun Nd‐Fe‐B base alloy permanent magnets were studied. The addition of Si to the Nd‐Fe‐B base alloy improves magnetic properties: it especially increases the maximum energy product (BH)max up to 20 MG Oe, remanence Br over 9 kG, and decreases intrinsic coercive force iHc. The addition of Si also increases Curie temperature and decreases reversible temperature coefficient. The combined addition of Si and Al spreads wheel surface velocity ranges to obtain (BH)max>15 MG Oe and Br>9 kG compared to the addition of Si only. The origin of high performance is discussed.