Details

Autor(en) / Beteiligte

• Ye, Xinli
• Chen, Zhaofeng
• Li, Min
• Wang, Ting
• Zhang, Junxiong
• Wu, Cao
• Zhou, Qianbo
• Liu, Hezhou
• Cui, Sheng

Titel

Reticulated SiC coating reinforced carbon foam with tunable electromagnetic microwave absorption performance

Ist Teil von

• Composites. Part B, Engineering, 2019-12, Vol.178, p.107479, Article 107479

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Three-dimensional carbon foam reinforced by the chemical vapour deposition (CVD) SiC coating possessed an enhanced microwave absorbing performance. The effect of the CVD SiC on the properties of the carbon foam was researched. As a result, the microwave absorbing performance improved with the thicker SiC coating as the minimum reflection loss value decreased from −20.67 to −33.65 dB while the bandwidth frequency increased from 5.04 to 5.94 GHz, which was ascribed to the stronger basis dielectric response networks and interface polarization. In addition, the internal relation between the impedance matching value and attenuation coefficient was illustrated to further dig the absorbing mechanism, followed by a simple schematic diagram. Given the excellent performance of the basic material and exceptional structure characteristics, it has the prospect of becoming a superior functional composite in absorbing applications. •The effect of the CVD SiC on the properties of the carbon foam was researched.•The absorbing performance improved due to the dielectric response and polarization.•The relation between the impedance value and attenuation coefficient was discussed.•The absorption performance can be adjusted according to the tuned coat thickness.