Temperature Compensation of Bonded Rare-Earth Magnets by Blending of Alloy Powders (Materials Research)

本文将研究一种键合稀土永磁体内部温度补偿的方法。重点将放在钕铁硼磁体上，它在0到+150℃的范围内对自发磁化有很强的温度依赖性。主要磁性成分的粗粉将与显示相反温度磁化系数的第二硬磁性材料混合。在第一阶段，将确定合适的合金成分，开发模型，并测试混合物。

This proposal will examine a method of internal temperature compensation in bonded rare-earth permanent magnets. Emphasis will be on neodymium-iron-boron magnets, which have a strong temperature dependence of the spontaneous magnetization in the range of 0 to +150 C. Coarse powders of the main magnetic constituent will be blended with a second hard magnetic material that displays an opposite temperature coefficient of magnetization. Suitable alloy compositions will be identified, a model developed, and blends tested in Phase I.