Design, Preparation, and Magnetic Properties of Fe4N/Fe3N Soft Magnetic Composites Fabricated by Gas Nitridation

被引：4
|
作者：
Zhang, Chaoyun [1 ,2 ]
Peng, Xiaoling [1 ,2 ]
Li, Jing [1 ,2 ]
Ellis, Tristan [3 ]
Wu, Qiong [1 ,2 ]
Xu, Jingcai [1 ,2 ]
Hong, Bo [1 ,2 ]
Wang, Xinqing [1 ,2 ]
Ge, Hongliang [1 ,2 ]
机构：
[1] China Jiliang Univ, Coll Mat Sci & Chem, Hangzhou 310018, Peoples R China
[2] China Jiliang Univ, Magnetism Key Lab Zhejiang Prov, Hangzhou 310018, Peoples R China
[3] Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 117575, Singapore
来源：
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM | 2023年 / 36卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Gas nitriding; Fe4N; Fe3N SMCs; Magnetic properties; POWDERS;
D O I：
10.1007/s10948-023-06521-8
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Fe4N/Fe3N soft magnetic composites (SMCs) prepared by gas nitriding were studied. In this paper, Fe4N was obtained by nitriding pure iron in NH3/H-2, then nitrided by pure ammonia gas to obtain Fe4N/Fe3N SMCs. The morphology, structure, and magnetic properties were studied by SEM, VSM, B-H Tester, and Impedance Analyzer. With the increase of nitridation time, Fe3N content gradually increased and reached saturation after nitriding for 5 h, saturation magnetization M-S decreased, and M-s was equal to 178.4 emu/g when nitriding time reached 8 h. With the increase in frequency, the effective permeability of Fe4N/Fe3N SMCs decreases, and the core loss increases. The synthesis of Fe3N generally reduced the effective permeability and loss of Fe3N/Fe4N SMCs, except for the 8 h nitrided sample. With the increase in frequency, complex permeability also decreased and tended to be stable. 8 h nitrided SMC has the largest Q and mu '.
引用
收藏
页码：923 / 929
页数：7
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