Phase Structure, Microstructure, and Magnetic Properties of (Nd-Ce)13.4Fe79.9B6.7 Alloys
Phase Structure, Microstructure, and Magnetic Properties of (Nd-Ce)13.4Fe79.9B6.7 Alloys
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(Nd-Ce)(13.4)Fe79.9B6.7 合金的相结构、显微组织和磁性能
DOI：
10.1007/s10948-020-05537-8
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发表时间：
2020-05-15
影响因子：
1.8
通讯作者：
Jin, Z. P.
中科院分区：
文献类型：
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作者：
Rong, M. H.;Fu, G.;Jin, Z. P.
对电弧熔炼法制备的（Nd1-xCex）（13.4）Fe79.9B6.7 （x = 0 ~ 1.0）合金的相组织和显微组织进行了实验研究。结果表明：（Nd1-xCex）（13.4）Fe79.9B6.7合金在1173 K下退火360 h后为单一（NdCe）(2)Fe14B相，具有四方nd2fe14b型结构（空间群P4(2)/mnm）；在退火后的（Nd1-xCex）（13.4）Fe79.9B6.7合金中，形成了连续的（NdCe）(2)Fe14B固溶相。另一方面，磁性测量结果表明，熔体纺丝技术制备的（Nd1-xCex）（13.4）Fe79.9B6.7条带的矫顽力、剩余物、最大磁能积和居里温度随着Ce含量的增加而逐渐降低，这是由于Ce2Fe14B相的内在磁性较差，导致Nd2Fe14B相中的Nd被Ce取代所致。
Phase structure and microstructure of (Nd1-xCex)(13.4)Fe79.9B6.7 (x = 0.0-1.0) alloys that were prepared via the arc-melting method were studied experimentally in this work. The results reveal that (Nd1-xCex)(13.4)Fe79.9B6.7 alloys annealed at 1173 K for 360 h are a single (NdCe)(2)Fe14B phase with the tetragonal Nd2Fe14B-typed structure (space group P4(2)/mnm). The formation of continuous (NdCe)(2)Fe14B solid solution phase in annealed (Nd1-xCex)(13.4)Fe79.9B6.7 alloys was confirmed. On the other hand, magnetic measurements exhibit that the coercivity, remanence, maximum magnetic energy product, and Curie temperature of (Nd1-xCex)(13.4)Fe79.9B6.7 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.