Abstract

The composition, structure, and surface topology of as-cast, homogenized, and nitrogenized alloy based on an intermetallic compound Sm₂Fe₁₇ with partial substitution of samarium atoms with holmium atoms have been studied using X-ray fluorescence and X-ray phase analysis, as well as scanning electron microscopy. Results on the magnetic properties of the initial compound Sm_1.2Ho_0.8Fe₁₇ and the nitride Sm_1.2Но_0.8Fe₁₇N_2.4 and its milled powders have been presented. It has been found that partial substitution of samarium atoms with holmium ones in a rare-earth metal sublattice in combination with the effect of introducing nitrogen atoms into the initial compound crystal lattice increases such magnetic characteristics as specific magnetization and coercive force. A comparative analysis of the magnetic hysteresis properties of powder samples showed that increasing the duration of the milling of the Sm–Ho–Fe–N powders using high-energy ball milling (15, 30, 45, and 60 min) contributes to improving the main magnetic characteristics. Functional characteristics obtained for Sm–Ho–Fe–N powders after their milling are important for the development of new high-coercivity magnets based on them.

中文翻译：

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铣削方式对（Sm，Ho）2 Fe 17 N x（x = 0，2.4）粉末材料的结构和磁性能的影响

摘要

使用X射线荧光和X射线相分析研究了基于金属间化合物Sm ₂ Fe ₁₇的sa铸，均质和氮化合金的组成，结构和表面拓扑，该金属间化合物用sa原子部分取代了atoms原子，以及扫描电子显微镜。结果在初始化合物的Sm的磁特性_1.2何_0.8的Fe ₁₇和氮化物的Sm _1.2 Но _0.8的Fe ₁₇ Ñ _2.4并介绍了其研磨粉。业已发现，稀土金属亚晶格中的with原子被partial部分取代，并结合了将氮原子引入初始化合物晶格的作用，从而提高了磁特性，例如比磁化强度和矫顽力。对粉末样品的磁滞特性的比较分析表明，使用高能球磨（15、30、45和60分钟）来增加Sm-Ho-Fe-N粉末的研磨持续时间有助于改善合金的磁滞性能。主要磁特性。Sm-Ho-Fe-N粉末研磨后获得的功能特性对于开发基于它们的新型高矫顽力磁体非常重要。