氮化作用对Sm2Fe17N3合金磁性能影响的微磁模拟

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2022-03-11 DOI:10.1109/LMAG.2022.3158542

Zhi Yang;Yuanyuan Chen;Yuqing Li;Dongtao Zhang;Weiqiang Liu;Qingmei Lu;Qiong Wu;Hongguo Zhang;Ming Yue

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引用次数: 2

摘要

氮氧化是Sm2Fe17N3形成过程中不可或缺的一个过程，对其磁性能有重要影响。本工作通过微磁模拟研究了氮化对Sm2Fe17N3磁性能的影响。未氮化Sm2Fe17核尺寸小于16nm的不完全氮化Sm2Fe17N3的正常矫顽力、剩磁和最大能积接近其在完全氮化Sm2Fe17N3中的值的99%。因此，小的未氮化Sm2Fe17芯不会影响Sm2Fe17N3永磁体的有效利用。对不同尺寸未氮化Sm2Fe17核的未完全氮化Sm2Fe17N3的磁化反转模式进行了评估，为深入了解Sm2Fe17N3颗粒的退磁过程提供了基础。这项工作可能有助于优化氮化条件，以提高Sm2Fe17N3永磁体的磁性能。

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Micromagnetic Simulation of Nitrogenation Effect on the Magnetic Properties of Sm2Fe17N3 Alloy

Nitrogenation is an indispensable process for the formation of Sm ₂ Fe ₁₇ N ₃ and has a major influence on its magnetic properties. In this work, the effect of nitrogenation on the magnetic properties of Sm ₂ Fe ₁₇ N ₃ was investigated by micromagnetic simulation. The normal coercivity, remanence, and the maximum energy product of incompletely nitrided Sm ₂ Fe ₁₇ N ₃ with a nonnitrided Sm ₂ Fe ₁₇ core size less than 16 nm approach nearly 99% of their values in fully nitrided Sm ₂ Fe ₁₇ N ₃ . Thus, a small nonnitrided Sm ₂ Fe ₁₇ core does not affect the effective utilization of Sm ₂ Fe ₁₇ N ₃ permanent magnets. The magnetization reversal mode of incompletely nitrided Sm ₂ Fe ₁₇ N ₃ with different sizes of nonnitrided Sm ₂ Fe ₁₇ cores was evaluated, providing an in-depth fundamental understanding of the demagnetization processes in Sm ₂ Fe ₁₇ N ₃ particles. This work could be useful for optimizing nitrogenation conditions to improve the magnetic properties of Sm ₂ Fe ₁₇ N ₃ permanent magnets.

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.