Enhanced Electromagnetic Absorption Properties of Novel 3D-CF/PyC Modified by Reticulated SiC Coating

• DOI: 10.1021/acssuschemeng.9b01101
• Publication Date: 2019-05-30T16:29:27Z
• Authors: Xinli Ye; Zhaofeng Chen; Sufen Ai; Bin Hou; Junxiong Zhang; Qianbo Zhou; Hezhou Liu; Sheng Cui
• Keywords: Reflection loss; Carbon nanofoam

A novel hybrid foam composite consisting of the three-dimensional (3D) interconnected carbon (CF) and ultrathin silicon carbide (SiC) coating was prepared via carbonization, chemical vapor infiltration, deposition process. By means incorporating pyro SiC on surface CF skeleton, not only thermostability compression resistance but also electromagnetic absorption performances as-prepared composites were enhanced. The results that thermostable, as beyond 87% weight remained in air atmosphere at 700 °C, strong strength explored potential application critical environments. As expected, possessed an excellent property with minimum reflection loss −37.189 dB 13.92 GHz 2.0 mm. It indicated bridged junctions, twinning interfaces, abundant stacking faults took great effect improvement property, well contribution 3D open-cell network.