在纳米复合材料中,不同纳米粒子之间充分接触,产生交换耦合,使得整体磁性大于各部分之和,因而具有比其他磁铁更强的磁性。另一个优点是,使用的稀土金属更少。若干年后,将有更强更轻的磁铁进入市场,制造更有效率的汽车引擎和风力涡轮机。研究人员急需这种新材料,因为目前最好的磁铁是由稀土金属制成,而眼下稀土正处于供不应求的状况。 In nanocomposites, different nanoparticles are in full contact with each other, resulting in exchange coupling, making the overall magnetic is greater than the sum of the various parts, and therefore have more magnetism than other magnets. Another advantage is that fewer rare earth metals are used. Several years later, stronger and lighter magnets will enter the market to make more efficient car engines and wind turbines. Researchers urgently need this new material, because at present the best magnet is made of rare earth metals, and now the REE is in short supply situation.