Preparation and microwave absorbing performance of Al2O3/SiC, MoSi2/SiC porous composites

doi:10.11949/0438-1157.20190444

Abstract

Abstract:

Si, Al₂O₃, MoSi₂ powder and biological bamboo were used to produce SiC porous ceramic, Al₂O₃/SiC and MoSi₂/SiC porous composites by embedding and sintering method. The phase composition, microstructure and absorbing performance of the composites were measured by XRD, SEM and waveguide method, respectively. The results show that the MoSi₂/SiC composite has obvious absorbing performance when the thickness is 2 mm. The effective absorption bandwidth is 2.75 GHz in the frequency range of 9.65—12.4 GHz in the X-band, and the minimum reflection loss is -38.27 dB. There are many SiC whiskers intermingled with Al₂O₃ in the pores of Al₂O₃/SiC composites, and a large number of electric dipole moments, generated dielectric loss. In addition to dielectric loss, MoSi₂/SiC composites also have resistive losses, and the sponge structure of the metal Mo, Mo_4.8Si₃C_0.6and MoSi₂ connecting rod formed in the tunnel constitutes a small conductive network to generate leakage loss to consume electromagnetic waves, so that the electromagnetic loss of the composite increases. So it will be more popular structural functional microwave absorbing materials in the future.

Key words: composite, embedded sintering, dielectric loss, microwave absorbing performance

摘要：

以Si、Al₂O₃、MoSi₂微粉和生物竹材为原料，采用包埋烧结法分别制备出SiC多孔材料、Al₂O₃/SiC、MoSi₂/SiC复合材料。采用XRD、SEM及波导法测试其物相组成、显微结构及吸波性能。结果表明：MoSi₂/SiC复合材料的厚度为2 mm时有明显的吸波特性，有效吸收带宽在X波段的9.65~12.4 GHz频率范围内达2.75 GHz，且最低反射损耗为-38.27 dB。Al₂O₃/SiC复合材料孔道内的Al₂O₃与SiC晶须交缠，形成大量电偶极矩，产生介电损耗；MoSi₂/SiC复合材料除介电损耗外还存在电阻损耗，使得复合材料电磁损耗增加，是较有前途的结构功能吸波材料。

关键词: 复合材料, 包埋烧结, 介电损耗, 吸波性能

CLC Number:

TM 25

Luping ZHANG, Xiaofeng YANG, Haikang ZHENG, Qian WANG, Zhenzhen MENG, Zhihong WU. Preparation and microwave absorbing performance of Al₂O₃/SiC, MoSi₂/SiC porous composites[J]. CIESC Journal, 2019, 70(11): 4478-4485.

张路平, 杨晓凤, 郑海康, 王倩, 蒙真真, 武志红. 多孔Al₂O₃/SiC、MoSi₂/SiC复合材料的制备及吸波性能[J]. 化工学报, 2019, 70(11): 4478-4485.

Figures/Tables 6

Fig.1 XRD patterns for surface of composites

Fig.2 Micromorphology and energy spectrum of SiC and its composites

Table 1 Conductivity of materials

Number	Material	Conductivity/(S·cm^-1)
1	SiC	6.9×10^-3
2	Al₂O₃/SiC	6.0×10^-4
3	MoSi₂/SiC	7.5×10⁰

Fig.3 Frequency dependence real part(ε′) and imaginary part(ε″) of dielectric constant of samples

Fig.4 Cole-Cole diagram of SiC and its composites

Fig.5 Reflection loss at different thicknesses and frequency of SiC porous material, Al2O3/SiC composites and MoSi2/SiC composites; reflection loss when material thickness is 2 mm; 3D schematic diagram of reflection loss of Al2O3/SiC and MoSi2/SiC composites

References 30

1	Li Z M , Yang Z , Zhang M L , et al . Dielectric properties of Al-doped Ti₃SiC₂ as a novel microwave absorbing material[J]. Ceramics International, 2017, 43: 222-227.
2	Li W C , Li C S , Lin L H , et al . All-dielectric radar absorbing array metamaterial based on silicon carbide/carbon foam material[J]. J. Alloys Compounds, 2019, 781: 883-891.
3	Cao M S , Song W L , Hou Z L , et al . The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave absorption of short carbon fiber/silica composites[J]. Carbon, 2010, 48(3): 788-796.
4	Ye W , Sun Q L , Zhang G Y , et al . Effect of heat treatment conditions on properties of carbon-fiber-based electromagnetic-wave-absorbing composites[J]. Ceramics International, 2019, 45(4): 5093-5099.
5	Wang L X , Guan Y K , Qiu X . Efficient ferrite/Co/porous carbon microwave absorbing material based on ferrite@ metal-organic framework[J]. Chem. Eng. J., 2017, 326: 945-955.
6	张国英, 梁文阁 . 氧化石墨烯对SiO₂多孔陶瓷吸波性能的影响[J]. 化工学报, 2013, 64(7): 2696-2700.
	Zhang G Y , Liang W G . Effects of grapheme oxide on electromagnetic wave absorption properties of porous silica ceramic[J]. CIESC Journal, 2013, 64(7): 2696-2700.
7	Zuo X D , Xu P , Zhang C Y , et al . Porous magnetic carbon nanofibers (P-CNF/Fe) for low-frequency electromagnetic wave absorption synthesized by electrospinning[J]. Ceramics International, 2019, 45(4): 4474-4481.
8	刘晨宇 . 苹果和流化焦遗态的多孔碳基材料制备及吸波性能研究[D]. 哈尔滨: 哈尔滨工业大学, 2018.
	Liu C Y . Apple and fluid coke derived porous carbon based materials and their electromagnetic absorption performance[D]. Harbin: Harbin Institute of Technology, 2018.
9	Zhao H Q , Chang Y , Ma J N , et al . A sustainable route from biomass cotton to construct lightweight and high-performance microwave absorber[J]. Chemical Engineering Journal, 2018, 339: 432-441.
10	Wu K H , Ting T H , Wang G P , et al . Synthesis and microwave electromagnetic characteristics of bamboo charcoal/polyaniline composites in 2—40 GHz[J]. Synthetic Met., 2008, 158(17/18): 688-694.
11	武志红, 李妤婕, 张聪, 等 . 竹炭/SiC复合材料结构及其吸波性能[J]. 硅酸盐学报, 2018, 46(1): 150-155.
	Wu Z H , Li Y J , Zhang C , et al . Structure and microwave absorption properties of bamboo charcoal/SiC composites[J]. J. Chin. Ceram. Soc., 2018, 46(1): 150-155.
12	Wu K H , Ting T H , Liu C I , et al . Electromagnetic and microwave absorbing properties of Ni_0.5Zn_0.5Fe₂O₄/bamboo charcoal core-shell nanocomposites[J]. Compos. Sci. Technol., 2008, 68: 132-139.
13	Guo H H , Gu J , Wang X J , et al . Responses of antibiotic and heavy metal resistance genes to bamboo charcoal and bamboo vinegar during aerobic composting[J]. Environmental Pollution, 2019, 252: 1097-1105.
14	崔贺帅, 郑彧, 刘杏娥, 等 . 生物质基SiC陶瓷制备的研究进展[J]. 材料工程, 2017, 45(8): 155-122.
	Cui H S , Zheng Y , Liu X E , et al . Research progress on preparation for biomass-based SiC ceramic[J]. Journal of Materials Engineering, 2017, 45(8): 155-122.
15	Dong S , Zhang W Z , Zhang X H , et al . Designable synthesis of core-shell SiCw@C heterostructures with thickness-dependent electromagnetic wave absorption between the whole X-band and Ku-band[J]. Chemical Engineering Journal, 2018, 354: 767-776.
16	Han M K , Yin X W , Hou Z X , et al . Flexible and thermostable graphene/SiC nanowire foam composites with tunable electromagnetic wave absorption properties[J]. ACS Appl. Mater. Interfaces, 2017, 9: 11803-11810.
17	Han X X , Wang Y L , Xiong X , et al . Microstructure, sintering behavior and mechanical properties of SiC/MoSi₂ composites by spark plasma sintering[J]. Trans. Nonferrous Met. Soc. China, 2018, 28: 957-965.
18	Vahedi F , Shahverdi H R , Shokrieh M M , 等 . 碳纳米管对环氧树脂基纳米复合材料的力学和电学性能影响[J]. 新型炭材料, 2014, 29(6): 419-425.
	Vahedi F , Shahverdi H R , Shokrieh M M , et al . Effects of carbon nanotube content on the mechanical and electrical properties of epoxy-based composites[J]. New Carbon Materials, 2014, 29(6): 419-425.
19	徐送宁, 赵美星, 孙乃坤, 等 . 退火对Fe/Al₂O₃纳米复合物微波吸收性能的影响[J]. 材料研究学报, 2014, 28(3): 227-232.
	Xu S N , Zhao M X , Sun N K , et al . Effect of annealing on microwave-absorption properties of Fe/Al₂O₃ nanocomposite prepared by ball-milling[J]. Chin. J. Mater. Res., 2014, 28(3): 227-232.
20	Lao X B , Xu X Y . Effect of silica on in-situ synthesis of nano-SiC whiskers in porous Al₂O₃-SiC composite ceramics for solar thermal storage by aluminium-assisted carbothermal reduction[J]. Ceramics International, 2018, 44: 20501- 20507.
21	Parchovianský M , Balko J , Švančárek P , et al . Mechanical properties and sliding wear behaviour of Al₂O₃-SiC nanocomposites with 3—20 vol% SiC[J]. J. Eur. Ceram. Soc., 2017, 37: 4297-4306.
22	Lu Y , Wu Y H , Xiao D Z , et al . Al₂O₃ coating for densification of SiC ceramics and sintering kinetics[J]. Surface and Coatings Technology, 2019, 374: 603-609.
23	Han X X , Wang Y L , Xiong X , et al . Microstructure, sintering behavior and mechanical properties of SiC/MoSi₂ composites by spark plasma sintering[J]. Trans. Nonferrous Met. Soc. China, 2018, 28: 957-965.
24	Wang Z , Li S C , Wang M , et al . Effect of SiC whiskers on microstructure and mechanical properties of the MoSi₂-SiC_W composites[J]. International Journal of Refractory Metals and Hard Materials, 2013, 41: 489- 494.
25	Liu X F , Liu H L , Huang C Z , et al . High temperature mechanical properties of Al₂O₃-based ceramic tool material toughened by SiC whiskers and nanoparticles[J]. Ceramics International, 2017, 43(1): 1160-1165.
26	李斌鹏, 王成国, 王雯 . 碳基吸波材料的研究进展[J]. 材料导报, 2012, 26(4): 9-14.
	Li B P , Wang C G , Wang W . Progress of electromagnetic wave absorbing materials based on carbon[J]. Mater. Rev., 2012, 26(4): 9-14.
27	蔡宁, 马荣, 乔冠军, 等 . 木材陶瓷化反应机理的研究[J]. 无机材料学报, 2001, 16(4): 763-768.
	Cai N , Ma R , Qiao G J , et al . Reaction mechanism of silicon carbide ceramics derived from woods[J]. J. Inorg. Mater., 2001, 16(4): 763-768.
28	李庭寿, 孙庚辰, 钟香崇, 等 . 锆刚玉莫来石-碳化硅复合材料的烧结和相变行为[J]. 硅酸盐通报, 1990, 4: 32-38.
	Li T S , Sun G C , Zhong X C , et al . The sintering and phase transition behavior of zirconium corundum mullite-silicon carbide composites[J]. B. Chin. Ceram. Soc., 1990, 4: 32-38.
29	王志平, 叶亮, 路鹏程 . 基于介电性能研究碳纤维/环氧复合材料单向板电热作用机制[J]. 复合材料学报, 2017, 34(2): 270-277.
	Wang Z P , Ye L , Lu P C . Electro-thermal influencing mechanism of carbon fiber/epoxy unidirectional iaminated composites based on dielectric properties[J]. Acta Mater. Compos. Sin., 2017, 34(2): 270-277.
30	Ye X L , Chen Z F , Ai S F , et al . Enhanced electromagnetic absorption properties of novel 3D-CF/PyC modified by reticulated SiC coating[J]. ACS Sustainable Chem. Eng., 2019, 7: 11386-11395.

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Preparation and microwave absorbing performance of Al₂O₃/SiC, MoSi₂/SiC porous composites

多孔Al₂O₃/SiC、MoSi₂/SiC复合材料的制备及吸波性能

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