Study on the Electromagnetic and Microwave Absorption Characteristics of Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si by Non-metallic (B, C) Doping

被引：0

作者：

Jiang Zou ^{[1
]}

Zehang Zhao ^{[2
]}

Quan Xie ^{[3
]}

机构：

[1] Zunyi Normal University,School of Physics and Electronic Science

[2] Guizhou Normal University,School of Physics and Electronic Science

[3] Guizhou University,School of Big Data and Information Engineering, Institute of New Optoelectronic Materials and Technology

来源：

Journal of Superconductivity and Novel Magnetism | 2025年 / 38卷 / 1期

关键词：

Alloying; Doping; Co; Si; Absorption performance;

D O I：

10.1007/s10948-024-06897-1

中图分类号：

学科分类号：

摘要：

Mechanical alloying and hot sintering were used to synthesize Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si-doped powder materials with varying boron (B) and carbon (C) ratios. The effect of B and C doping on the magnetic behavior, microwave absorption characteristics, and crystal structure of the materials was systematically investigated. All X-ray diffraction peaks corresponded to the standard card for Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si (ICDD: 98-005-2281). The saturation magnetization (Ms) values for samples doped with 2, 4, and 8 at% B were 14.28, 19.56, and 7.36 emu/g, respectively. The Ms values for the Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si samples doped with 2, 4, and 8 at% C were 16.66, 19.97, and 14.56 emu/g, respectively. Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si alloys with C significantly improved their overall absorption performance. The minimum reflection loss in the C-doped Co2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}Si alloy was -\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$-$$\end{document}61.88 dB, accompanied by a bandwidth of 2.38 GHz for effective absorption. Furthermore, the Co2-x\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2-x}$$\end{document}Cx\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{x}$$\end{document}Si samples (where x = 0.04, 0.08, 0.16) exhibited superior comprehensive absorption properties compared to the Co2-x\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2-x}$$\end{document}Bx\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{x}$$\end{document}Si samples.

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