Phase structure and microstructure of (Nd_1-xCe_x)_13.4Fe_79.9B_6.7 (x = 0.0–1.0) alloys that were prepared via the arc-melting method were studied experimentally in this work. The results reveal that (Nd_1-xCe_x)_13.4Fe_79.9B_6.7 alloys annealed at 1173 K for 360 h are a single (NdCe)₂Fe₁₄B phase with the tetragonal Nd₂Fe₁₄B-typed structure (space group P4₂/mnm). The formation of continuous (NdCe)₂Fe₁₄B solid solution phase in annealed (Nd_1-xCe_x)_13.4Fe_79.9B_6.7 alloys was confirmed. On the other hand, magnetic measurements exhibit that the coercivity, remanence, maximum magnetic energy product, and Curie temperature of (Nd_1-xCe_x)_13.4Fe_79.9B_6.7 ribbons that were fabricated by melt spinning technology decrease gradually with increasing Ce content, which results from the substitution of Nd by Ce in Nd₂Fe₁₄B phase due to inferior intrinsic magnetic properties of Ce₂Fe₁₄B phase.

中文翻译：

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（Nd-Ce）13.4 Fe 79.9 B 6.7合金的相结构，显微组织和磁性

 在这项工作中，通过实验研究了通过电弧熔化法制备的（Nd _1-x Ce _x）_13.4 Fe _79.9 B _6.7（x = 0.0-1.0）合金的相结构和微观结构。结果表明，在1173 K退火360 h的（Nd _1-x Ce _x）_13.4 Fe _79.9 B _6.7合金为单一（NdCe）₂ Fe ₁₄ B相，具有四方Nd ₂ Fe ₁₄ B型结构（空间群） P4 ₂ / mnm）。连续（NdCe）₂ Fe的形成_确认了在退火（Nd _1-x Ce _x）_13.4 Fe _79.9 B _6.7合金中的₁₄ B固溶体相。另一方面，磁性测量表明，通过熔融纺丝技术制备的（Nd _1-x Ce _x）_13.4 Fe _79.9 B _6.7薄带的矫顽力，剩磁，最大磁能积和居里温度随Ce含量的增加而逐渐降低，这是由于Ce ₂ Fe _14的固有磁性能较差而在Nd ₂ Fe ₁₄ B相中用Ce替代了Nd所致B相。