The present disclosure relates to a method for preparing high-performance sintered NdFeB magnets. The method comprises the steps of: a) attaching a multi-element alloy powder onto a surface of the sintered NdFeB magnet, wherein the multi-element alloy is of formula (1) PraRHbGacCud (1) with RH being at least one element selected from Dy and Tb and a, b, c, and d satisfying the conditions 0.30≤(a+b)/(a+b+c+d)≤0.65, 0.20≤d/(c+d)≤0.50, and 0.23≤b/(a+b)≤0.60; and b) performing a diffusion process.
展开▼
机译：本公开涉及一种制备高性能烧结NdFeB磁体的方法。 该方法包括以下步骤：a）将多元素合金粉末连接到烧结的NdFeB磁体的表面上，其中多元素合金是式（1）prarhbgaccud（1），Rh是选自的至少一个元素 Dy和Tb和a，b，c和d满足0.30≤（a + b）/（a + b + c + d）≤0.65,0.20≤d/（c + d）≤0.50，0.23≤的条件 B /（A + B）≤0.60; b）执行扩散过程。
展开▼
