In this paper, by adding rare-earth (RE) elements to Fe₈₉Zr₇B₄ ternary amorphous alloy, we obtained a series of Fe₈₇Zr₇B₄RE₂ (RE = Dy, Tb, Gd) amorphous ribbons to further improve the magnetic refrigeration capacity of the basic alloy. Through the heavy RE element substitutions, the glass-formability of the Fe₈₉Zr₇B₄ alloy was improved effectively. Besides, the Curie temperature T_c of the alloy system increased from 275 K to 342 K, obtaining a roughly linear correlation between the de Gennes factor and T_c. Through the recombination of ribbons with different T_c values, we designed potential amorphous composites with a "table-like" magnetic entropy change curve under different temperatures. This research promises to deepen understanding of the effect of RE additions on the magneto-caloric properties and enhance the performance of Fe-Zr-B amorphous refrigerants around room temperature.

_{本文通过在Fe 89} Zr ₇ B ₄三元非晶合金中添加稀土(RE)元素，得到一系列Fe ₈₇ Zr ₇ B ₄ RE ₂ (RE = Dy, Tb, Gd)非晶薄带，进一步提高基础合金的磁制冷能力。通过重稀土元素置换，Fe ₈₉ Zr ₇ B ₄合金的玻璃成形性得到有效改善。此外，合金体系的居里温度T _c从 275 K 增加到 342 K，得到 de Gennes 因子与T _{c之间的大致线性关系。}. 通过不同T _c值的条带的复合，我们设计了在不同温度下具有“表状”磁熵变曲线的潜在非晶复合材料。该研究有望加深对稀土添加对磁热性能影响的理解，并提高 Fe-Zr-B 无定形制冷剂在室温附近的性能。