Fe2AlB2的高温氧化机制及吸波性能研究

doi:10.15541/jim20250218

无机材料学报 ›› 2026, Vol. 41 ›› Issue (1): 45-54.DOI: 10.15541/jim20250218 CSTR: 32189.14.jim20250218

Fe₂AlB₂的高温氧化机制及吸波性能研究

马新超¹(), 智清¹, 李威¹, 陈毛¹^,²(), 王海龙¹^,², 张锐¹^,², 张帆³, 范冰冰¹^,²()

1.郑州大学材料科学与工程学院, 郑州 450001
2.郑州大学洛阳产业技术研究院, 洛阳 471100
3.河南省科学院, 郑州 450046

收稿日期:2025-05-20 修回日期:2025-06-30 出版日期:2026-01-20 网络出版日期:2025-07-20
通讯作者: 陈毛, 副研究员. E-mail: mchen@zzu.edu.cn;
范冰冰, 教授. E-mail: fanbingbing@zzu.edu.cn
作者简介:马新超(2004-), 男, 本科. E-mail: 2848489094@qq.com
基金资助:
河南省杰出青年基金(242300421009);河南省重点研发专项(251111232100)

High-temperature Oxidation Mechanism and Electromagnetic Wave Absorption Properties of Fe₂AlB₂

MA Xinchao¹(), ZHI Qing¹, LI Wei¹, CHEN Mao¹^,²(), WANG Hailong¹^,², ZHANG Rui¹^,², ZHANG Fan³, FAN Bingbing¹^,²()

1. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
2. Luoyang Industrial Technology Research Institute, Zhengzhou University, Luoyang 471100, China
3. Henan Academy of Sciences, Zhengzhou 450046, China

Received:2025-05-20 Revised:2025-06-30 Published:2026-01-20 Online:2025-07-20
Contact: CHEN Mao, associate professor. E-mail: mchen@zzu.edu.cn;
FAN Bingbing, professor. E-mail: fanbingbing@zzu.edu.cn
About author:MA Xinchao (2004-), male, undergraduate. E-mail: 2848489094@qq.com
Supported by:
Excellent Youth Foundation of Henan Scientific Committee(242300421009);Key Research and Development Projects of Henan Province(251111232100)

摘要/Abstract

摘要： 传统吸波材料在高温条件下易失效, 难以满足极端高温环境的性能需求。Fe₂AlB₂因其纳米层状结构以及优良的高温稳定性, 在高温吸波领域备受关注。本研究通过湿法球磨-氩气烧结工艺制备了Fe₂AlB₂粉末, 并系统研究了Fe₂AlB₂在高温下的氧化机制和吸波性能变化规律。同时, 借助电磁仿真软件对其在7 GHz微波下的吸收过程进行了雷达散射截面模拟。结果表明: Fe₂AlB₂起始氧化温度为671 ℃, 随着氧化温度的升高, 其表面形成致密Al₂O₃保护膜, 抗氧化性能显著增强; 当氧化温度超过1000 ℃时, Al₂O₃膜破裂, 主相转变为Fe₂O₃、Al₄B₂O₉以及非晶态B₂O₃; 在300~800 ℃氧化温度范围内, 样品吸波性能随氧化温度升高而逐步提升, 尤其在10 GHz附近, 其介电损耗能力最为突出。当氧化温度升高至900 ℃时, 在频率f = 11.28 GHz下, 样品的反射损耗达到-42.60 dB, 相应的厚度为2.8 mm。Al₂O₃膜通过诱导“氧化膜-基体”界面极化损耗, 显著提高了介电损耗效率。本研究阐明了Fe₂AlB₂在不同温度的氧化机制及其对吸波性能的影响规律, 为其在高温吸波环境中的应用提供了理论基础。

关键词: Fe₂AlB₂, 抗氧化性, 吸波性能, 高温稳定性

Abstract:

Traditional wave-absorbing materials often exhibit performance limitations at high temperatures, which makes it difficult to meet performance demands in extreme high-temperature environments. Fe₂AlB₂ has garnered significant attention in the field of high-temperature wave absorption due to its nano-layered structure and exceptional high-temperature stability. This study synthesized Fe₂AlB₂ powder through a wet ball milling process followed by sintering in an argon atmosphere. Investigation was conducted to elucidate the oxidation mechanisms and to assess the evolution of its wave-absorbing properties at elevated temperatures. Additionally, electromagnetic simulation software was utilized to model the radar cross-section associated with its absorption process under 7 GHz microwave irradiation. The results indicate that the onset oxidation temperature of Fe₂AlB₂ is 671 ℃. As the oxidation temperature increases, a dense Al₂O₃protective film forms on its surface, significantly enhancing its oxidation resistance. Beyond 1000 ℃, this Al₂O₃ film fractures, leading to transformation of the primary phases into Fe₂O₃, Al₄B₂O₉ and amorphous B₂O₃. Within the oxidation temperature range of 300-800 ℃, the wave absorption performance of the sample progressively improves with increasing oxidation temperature, exhibiting particularly outstanding dielectric loss capabilities around 10 GHz. At an oxidation temperature of 900 ℃, the sample achieves a reflection loss of -42.60 dB at a frequency of 11.28 GHz, with corresponding a thickness of 2.8 mm. The Al₂O₃ film significantly enhances dielectric loss efficiency by inducing interfacial polarization loss at the "oxide film-matrix" interface. This study elucidates that oxidation mechanisms of Fe₂AlB₂ at varying temperatures and examines consequent impacts on wave-absorbing properties, thereby providing a theoretical foundation for its application in high-temperature wave-absorbing environments.

Key words: Fe₂AlB₂, oxidation resistance, wave-absorbing property, high-temperature stability

中图分类号:

TG174

马新超, 智清, 李威, 陈毛, 王海龙, 张锐, 张帆, 范冰冰. Fe₂AlB₂的高温氧化机制及吸波性能研究[J]. 无机材料学报, 2026, 41(1): 45-54.

MA Xinchao, ZHI Qing, LI Wei, CHEN Mao, WANG Hailong, ZHANG Rui, ZHANG Fan, FAN Bingbing. High-temperature Oxidation Mechanism and Electromagnetic Wave Absorption Properties of Fe₂AlB₂[J]. Journal of Inorganic Materials, 2026, 41(1): 45-54.

图/表 11

图1 Fe2AlB2粉体的XRD图谱(a)和SEM照片(b)

Fig. 1 XRD pattern (a) and SEM image (b) of Fe2AlB2 powder

图2 Fe2AlB2粉体在不同温度下氧化2 h后的XRD图谱

Fig. 2 XRD patterns of Fe2AlB2 powders oxidized at different temperatures for 2 h (a) 300−600 ℃; (b) 700−900 ℃; (c) 1000−1200 ℃

图3 Fe2AlB2粉体在不同温度下氧化2 h后的元素含量分析

Fig. 3 Element analyses of Fe2AlB2 powders oxidized at different temperatures for 2 h

图4 Fe2AlB2粉体在不同温度下氧化2 h后的SEM照片和EDS分析

Fig. 4 SEM images and EDS mappings of Fe2AlB2 powders oxidized at different temperatures (a) 300 ℃; (b) 400 ℃; (c) 500 ℃; (d) 600 ℃; (e, h) 700 ℃; (f, i) 800 ℃; (g, j) 900 ℃; (k) SEM image of Fe2AlB2 powder oxidized at 900 ℃ for 2 h and (l-n) Corresponding elemental EDS mappings of (l) Al, (m) O and (n) Fe

图5 Fe2AlB2粉体在不同温度下氧化2 h所得样品的Fe2p、Al2p和B1s XPS谱图

Fig. 5 Fe2p, Al2p and B1s XPS spectra of Fe2AlB2 powders oxidized at different temperatures for 2 h (a-c) 600 ℃; (d-f) 700 ℃; (g-i) 900 ℃

图6 Fe2AlB2粉体的TG-DTG-DSC曲线(a)及恒温氧化2 h后的增重曲线(b)

Fig. 6 TG-DTG-DSC curves (a) and weight gain curve after isothermal oxidation for 2 h (b) of Fe2AlB2 powders

图7 T400~T900样品的电磁参数

Fig. 7 Electromagnetic parameters of T400−T900 samples (a) ${\varepsilon }'$; (b) ${\varepsilon }''$; (c) ${\mu }'$; (d) ${\mu }''$; (e) $\tan {{\delta }_{\varepsilon }}$; (f) $\tan {{\delta }_{\mu }}$. Colorful figures are available on website

图8 不同氧化温度处理后样品的三维反射损耗曲线

Fig. 8 3D reflection loss curves of the samples oxidized at different temperatures (a) T400; (b) T500; (c) T600; (d) T700; (e) T800; (f) T900. Colorful figures are available on website

图9 不同温度氧化后样品的阻抗匹配曲线

Fig. 9 Impedance matching curves of the samples oxidized at different temperatures (a) T400; (b) T500; (c) T600; (d) T700; (e) T800; (f) T900. Colorful figures are available on website

图10 不同温度氧化后样品的磁损耗系数与频率之间的关系曲线

Fig. 10 Curves of magnetic loss coefficient versus frequency for samples oxidized at different temperatures Colorful figure is available on website

图11 三维雷达波散射信号和RCS模拟曲线

Fig. 11 Three-dimensional radar scattering signals and RCS simulation curves (a) T400; (b) T500; (c) T600; (d) T700; (e) T800; (f) T900

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Fe₂AlB₂的高温氧化机制及吸波性能研究

High-temperature Oxidation Mechanism and Electromagnetic Wave Absorption Properties of Fe₂AlB₂

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