High-performance anisotropic bonded magnets need a high volumetric filling fraction of magnetic powder in a polymer binder and good alignment while possessing adequate mechanical properties. The correlation between the degree of alignment (DOA) and the volumetric filling fraction of magnetic powder, the type of binder and the processing parameters have been studied using Nd–Fe–B anisotropic bonded magnets. Thermomagnetic analysis and differential scanning calorimetry results show that the magnetic powder can be well aligned in a bonded magnet under an external magnetic field at a temperature higher than the binders’ melting point by 20–60 K, depending on the type of magnetic powder and binder. The DOA results mainly from the interplay between the Zeeman energy (E _app) and the inter-particle static energy (E _stat) in bonded magnets at the chosen alignment temperature and the magnetic fields. A good alignment can be achieved by an alignment magnetic field which is about twice its coercivity in an anisotropic Nd–Fe–B bonded magnet, which is confirmed by our experimental and modeling results.

高性能各向异性粘结磁体需要聚合物粘合剂中磁粉的高体积填充率和良好的排列，同时具有足够的机械性能。已使用 Nd-Fe-B 各向异性粘结磁体研究了排列度 (DOA) 与磁粉体积填充率、粘合剂类型和加工参数之间的相关性。热磁分析和差示扫描量热法结果表明，根据磁粉和粘结剂的类型，在比粘结剂熔点高 20-60 K 的温度下，在外部磁场下，磁粉可以很好地排列在粘结磁铁中. DOA 主要来自塞曼能量 ( E _app) 和粘结磁体在选定的排列温度和磁场下的粒子间静能 ( E _stat )。通过在各向异性 Nd-Fe-B 粘结磁体中的矫顽力约为其两倍的对准磁场可以实现良好的对准，我们的实验和建模结果证实了这一点。