Anisotropic microwave absorbing properties of oriented SiC short fiber sheets

Chu, Zengyong; Cheng, Haifeng; Zhou, Yong‐Wu; Wang, Qiang; Wang, Jun

doi:10.1016/j.matdes.2009.12.026

Cited by 33 publications

(10 citation statements)

References 11 publications

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“…[64][65][66][67] The polytypes and dimensions of SiC play an important role in determining the physical properties of SiC, such as its electrical and thermal properties as well as inuencing its EM absorption ability. [68][69][70][71][72][73][74][75][76][77][78] Zhang 14 investigated b-SiC nanowires with different stacking fault populations and stacking planes which was fabricated by simply varying the heating temperature. SiC nanowires with a higher carbon unoccupied density of states (DOS) has a higher stacking fault content, which leads to a greater population of dipoles.…”

Section: Effects Of Morphological and Phase Change Of Sicmentioning

confidence: 99%

Electromagnetic wave absorption of silicon carbide based materials

Liu

Kirk

et al. 2017

RSC Adv.

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Section: Effects Of Morphological and Phase Change Of Sicmentioning

confidence: 99%

Electromagnetic wave absorption of silicon carbide based materials

Liu

Kirk

et al. 2017

RSC Adv.

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“…The demand for high durability materials is steadily growing in high-temperature applications such as aerospace, military, high-efficiency cook-top heating element which is necessitated the research & development on SiC fibers application. [1][2][3][4] Zengyong Chu et.al suggests that SiC fiber shows high absorption properties on the microwave 5) and it makes the SiC fiber for one of the best candidates for the stealth technology. They conducted microwave absorption test on SiC fiber sheet in a range of 4GHz to 18GHz, to determine the better microwave absorbing achievement by changing orientation of short fibers fabric.…”

Section: Introductionmentioning

confidence: 99%

Heating Behavior of Silicon Carbide Fiber Mat under Microwave

Khishigbayar

Seo

Cho

2016

J. Korean Ceram. Soc

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A small diameter of SiC fiber mat can produce much higher heat under microwave irradiation than the other types of SiC materials. Fabrication of high strength SiC fiber consists of iodine vapor curing on polycarbosilane precursor and heat treatment process. The curing stage of polycarbosilane fiber was maintained at 150-200 o C in a vacuum condition under the iodine vapor to fabricate a high thermal radiation SiC fiber. The structure and morphology of the fibers were characterized by Fourier transform infrared (FTIR) spectroscopy, thermogravimetric analysis (TG) and scanning electron microscopy (SEM). In this study, the thermal properties of SiC fiber mats under microwave have been analyzed with an IR thermal camera and its image analyzer. The prepared SiC fiber mats radiated high temperature with extremely high heating rate up to 1100 o C in 30 seconds. The fabricated SiC fiber mats were not oxidized after the heat radiation process under the microwave irradiation.

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“…SiC has good thermal and chemical stability, mechanical strength, and adjustable electrical conductivity. 12,13 These properties make it a good candidate for MAMs. To be an efficient absorbent, however, SiC usually needs to be surfacemodified, composited, or doped with, other materials, due to its low electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Carbon coated Co–SiC nanocomposite with high-performance microwave absorption

Xie

Guo

Jin

2013

Phys. Chem. Chem. Phys.

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A carbon coated Co-SiC nanocomposite was fabricated via in situ pyrolysis of methane on a hierarchical Co3O4-SiC nanostructure, which was obtained by hydrothermal synthesis. By the reduction of methane, the Co3O4 was in situ converted to cobalt nanoparticles, and coated by carbon or filled in the CNTs. The as-prepared composite exhibits excellent microwave absorption performance in the frequency range of 2-18 GHz. When the match thickness is 1.8 mm, the composite has a reflection loss value below -10 dB in the range 12.2 to 18 GHz, which nearly covers the whole Ku-band (12-18 GHz). When the thickness is 2.6 mm, the reflection loss value below -10 dB distributes at 8.2-11.5 GHz, covering most of the X-band (8-12 GHz). Moreover, by further tuning the match thickness, the composite can selectively absorb some certain frequency bands of microwaves.

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Anisotropic microwave absorbing properties of oriented SiC short fiber sheets

Cited by 33 publications

References 11 publications

Electromagnetic wave absorption of silicon carbide based materials

Electromagnetic wave absorption of silicon carbide based materials

Heating Behavior of Silicon Carbide Fiber Mat under Microwave

Carbon coated Co–SiC nanocomposite with high-performance microwave absorption

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