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- Title
Effect of Cu on microstructure, magnetic properties of antiperovskite nitrides Cu<sub>x</sub>NFe<sub>4−x</sub>.
- Authors
Wang, Wei; Kan, Xucai; Liu, Xiansong; Feng, Shuangjiu; Liu, Chaocheng; Mehmood Ur Rehman, Khalid; Shezad, Mudssir; Wu, Qiuyue; Wang, Yuanyuan
- Abstract
For soft magnetic materials, especially new intermetallic compounds, some good soft magnetic properties, such as high permeability, low power loss, as well as superior DC-bias properties, will determine their prospects for application. In this paper, we report soft magnetic properties of CuxNFe4−x, prepared by a new synthetic method. Although the saturation magnetization of the samples is slightly lower than that of Fe4N due to Cu doping, various other experimental results clearly provide evidence that the Fe substitution by Cu leads to the optimization and improvement of soft magnetic properties in Fe4N. With increasing Cu content, the permeability increases and power loss reduces from 1064.5 mW/cm3 for x = 0.1 to 679 mW/cm3 for x = 0.5 at H = 8 A/m, f = 1000 kHz. Additionally, the value of DC-bias (μH/μH=0) rises above 82% at H = 100 Oe, implying a superior DC-bias properties. More importantly, with the increases of x content, the value of μH/μH=0 increases and reaches 87% for sample x = 0.5 at H = 100 Oe. The improvement of soft magnetic properties of the Fe-based antiperovskite CuxNFe4−x is encouraging for future applications as functional materials.
- Subjects
MAGNETIC properties of copper; MICROSTRUCTURE; MAGNETIZATION; PERMEABILITY; SOFT magnetic materials
- Publication
Journal of Materials Science: Materials in Electronics, 2019, Vol 30, Issue 11, p10383
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-019-01377-y