Effect of soft magnetic phase addition on the microstructure and properties of SmCo5/FeCo anisotropic nanocomposite powders

被引：7

作者：

Geng, Qiyao ^{[1
]}

Yao, Lulu ^{[2
]}

Zheng, Qiang ^{[1
]}

Si, Pingzhan ^{[2
]}

Bian, Baoru ^{[3
]}

Du, Juan ^{[1
,3
]}

机构：

[1] Shanghai Univ, Inst Mat, Shanghai 200444, Peoples R China

[2] Jiliang Univ, Sch Mat Sci & Engn China, Hangzhou 310018, Peoples R China

[3] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2022年 / 553卷

关键词：

Dual phase nanocomposite; Grain size; Permanent magnet; Chemical coating; SmCo5; FeCo; PVP; FACILE SYNTHESIS; REMANENCE;

D O I：

10.1016/j.jmmm.2022.169296

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High coercivity SmCo(5 )was used as hard phase and SmCo5/FeCo dual-phase nanocomposite powders had been successfully fabricated by chemical coating high magnetization FeCo soft phase on the surface of hard phase. The effect of different addition amounts of FeCo on the microstructure and magnetic properties of the composites was systematically investigated. Optimal magnetic properties, including magnetic energy product (25.7 MGOe), saturation magnetization (102 emu/g), remanence (97 emu/g) and high coercivity (16.9 kOe) were simulta-neously obtained when the nominal addition of 10 wt% FeCo soft magnetic phase was coated. Poly-vinylpyrrolidone (PVP) was used as surfactant, which guaranty both Fe and Co atoms were coated. The good performance is ascribed to nano-sized below 15 nm and well-distributed of soft phase and small grain size of hard phase.

引用

页数：6

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