Mircowave Absorption and Corrosion Resistance Properties of FeSiAl@Al2O3 Coating Materials

Longyu Lan; Ziyi Wang; Hengyong Wei; Minghe Zhang; Yi Cui; Yonghang Feng; Kechen Li; Dongfeng Lv; Yingna Wei; Yuejun Chen

doi:10.62051/ijmsts.v2n1.05

Authors

Longyu Lan
Ziyi Wang
Hengyong Wei
Minghe Zhang
Yi Cui
Yonghang Feng
Kechen Li
Dongfeng Lv
Yingna Wei
Yuejun Chen

DOI:

https://doi.org/10.62051/ijmsts.v2n1.05

Keywords:

FeSiAl alloy, Aluminum chloride hexahydrate, FeSiAl@Al2O3 coating, Mircowave absorption performance, Corrosion resistance

Abstract

Mircowave absorption materials can solve the problem of electromagnetic pollution, but corrosion in harsh environments will lead to a decrease in its absorption performance, so it is important to study materials that are both mircowave absorption and corrosion-resistant. In this experiment, FeSiAl alloy was coated Al₂O₃ (noted as FeSiAl@ Al₂O₃ coating) with aluminum chloride hexahydrate as aluminum source, and its mircowave absorption and corrosion resistance properties were studied. The results show that the mircowave absorption and corrosion resistance performance of FeSiAl@ Al₂O₃ coating both are obviously improved. The minimum reflection loss of FeSiAl@Al₂O₃ is -43.4 dB, the matching thickness is 2.3 mm, and the effective bandwidth is 2.97 GHz. For the coated alloy, the corrosion current decreases from 3.538*10^-4 A/cm² to 3.499*10^-4 A/cm², and the corrosion resistance increases from 96.1 ohm to 225.1 ohm. This provides an effective way to develop iron aluminum silicon materials that combine microwave absorption and corrosion resistance.

References

[1] DUAN Y, LIU W, SONG L, et al. A discrete structure: FeSiAl/carbon black composite absorption coatings [J]. Materials Research Bulletin, 2017, 88: 41-8.

[2] CAI X-D, JIANG X-J, XIE W, et al. Effect of particle size on the preparation and microwave absorption properties of FeSiAl magnetically soft alloy hollow microspheres [J]. Defence Technology, 2018, 14(5): 477-83.

[3] MA G, DUAN Y, LIU Y, et al. Effect of surface modified SiO2 powders on microwave absorbing properties of flaky FeSiAl coatings [J]. Journal of Materials Science: Materials in Electronics, 2018, 29(20): 17405-15.

[4] XU H, BIE S, JIANG J, et al. Electromagnetic and microwave absorbing properties of the composites containing flaky FeSiAl powders mixed with MnO 2 in 1–18 GHz [J]. Journal of Magnetism and Magnetic Materials, 2016, 401: 567-71.

[5] ZHOU L, YU J, WANG Z, et al. Electromagnetic and microwave absorption properties of FeSiAl and flaky graphite filled Al2O3 composites with different FeSiAl particle size [J]. Ceramics International, 2020, 46(4): 4329-34.

[6] ZHU Y, XIE G, XIE N, et al. Electromagnetic properties of Sm-doped FeSiAl alloy absorbing materials prepared by melt spinning [J]. Materials Science and Technology, 2022, 38(7): 419-24.

[7] DONG Y, LIANG X, ZHONG S, et al. A simple method for preparing flaky FeSiAl for low-frequency electromagnetic wave absorber [J]. Journal of Magnetism and Magnetic Materials, 2023, 574.

[8] LI J, GUO Y, YANG R, et al. Achieving ultra-low frequency microwave absorbing properties based on anti-corrosive silica-pinned flake FeSiAl hybrid with full L band absorption - ScienceDirect. [J]. Journal of Alloys and Compounds, 2021.

[9] FENG Y, TANG C, QIU T. Effect of ball milling and moderate surface oxidization on the microwave absorption properties of FeSiAl composites [J]. Materials Science and Engineering: B, 2013, 178(16): 1005-11.

[10] ZHANG C, WANG X. A novel high-temperature FeSiAl_CaO–B2O3–SiO2 microwave absorption coating prepared via atmospheric plasma spraying - ScienceDirect. [J]. Ceramics International, 2024, 50(17).

[11] TIAN W, LI J, LIU Y, et al. Atomic-Scale Layer-by-Layer Deposition of FeSiAl@ZnO@Al2O3 Hybrid with Threshold Anti-Corrosion and Ultra-High Microwave Absorption Properties in Low-Frequency Bands [J]. Nano-Micro Letters, 2021, 13(1).

[12] DU L, CHEN J, ZHANG Q, et al. Enhancing the Magnetic Core Properties of Ultra-Thin Flaky FeSiAl Alloy Powders Through High-Temperature Reduction Treatment [J]. Journal of Superconductivity and Novel Magnetism, 2024.

[13] TAOLI L, SHUTING F, LIN L. Effect of corrosion behavior of FeSiAl electromagnetic shielding coating on wave absorption performance [J]. Chinese Journal of Engineering Science, 2019, 41(10): 1324-31.

[14] YAN X, LIU F, GUO J, et al. Excellent electrically insulated, thermal-oxidation resistant and corrosion resistant flaky-FeSiAl_BN core–shell composites for high-performance microwave absorption in harsh environments - ScienceDirect. [J]. Composites Part A: Applied Science and Manufacturing, 2023, 175: 107778.

[15] ZHANG X, GUO Y, ALI R, et al. Bifunctional carbon-encapsulated FeSiAl hybrid flakes for enhanced microwave absorption properties and analysis of corrosion resistance [J]. Journal of Alloys and Compounds, 2020, 828.

[16] LEI C, GE C, GE X, et al. Enhanced microwave absorption of flaky FeSiAl/ZnO composites fabricated via precipitation [J]. Materials Science and Engineering: B, 2022, 275.

[17] ZHANG X. Design of FeSiAl composite structure and its anti-corrosion properties [D]; University of Electronic Science and Technology of China, 2021.

[18] EI-SHEREAFY E, ABOUSEKKINA M M, MASHALY A, et al. Mechanism of thermal decomposition and ~/-pyrolysis of aluminum nitrate nonahydrate [AI(NO3)3.9HzO] [J]. Journal of Radioanalytical & Nuclear Chemistry, 1998, 237(1-2).

[19] TRUEX T J, HAMMERLE R H, ARMSTRONG R A. The thermal decomposition of aluminium sulfate [J]. Thermochimica Acta, 1977, 19(3).

[20] YANG Y, WANG N, PANG X, et al. Thermodynamics of the decomposition of aluminum chloride hexahydrate to prepare alumina [J]. Journal of Materials Research and Technology, 2021, 15: 6640-6.

[21] SUN J, XU H, SHEN Y, et al. Enhanced microwave absorption properties of the milled flake-shaped FeSiAl/graphite composites [J]. Journal of Alloys and Compounds, 2013, 548: 18-22.

[22] HUANG L, LIU X, CHUAI D, et al. Flaky FeSiAl alloy-carbon nanotube composite with tunable electromagnetic properties for microwave absorption [J]. Scientific Reports, 2016, 6(1).