Chen, Qingqing ; Li, Daxin ; Yang, Zhihua ; Jia, Dechang ; Zhou, Yu ; Riedel, Ralf ; Zhang, Tao ; Gao, Chenguang (2021)
SiBCN-reduced graphene oxide (rGO) ceramic composites derived from single-source-precursor with enhanced and tunable microwave absorption performance.
In: Carbon, 179
doi: 10.1016/j.carbon.2021.03.057
Article, Bibliographie
Abstract
SiBCN-reduced graphene oxide (SiBCN-rGO) ceramic composites with different rGO content derived from a single-source precursor were successful synthesized by polymer derived ceramics routes to tune their dielectric properties and electromagnetic wave absorption capacity. SiBCN-rGO ceramic composites with 6 wt% GO annealed at 1300 °C possessed the best microwave absorption performance obtaining the minimum reflection coefficient (RCmin) of −62.71 dB at 10.72 GHz, and the thin thickness of 2.17 mm. Adjusting its thickness to 1.58 mm could obtain the maximum effective absorption bandwidth (RC < −10 dB) of 4.32 GHz. The microwave absorption mechanisms of the as-prepared SiBCN-rGO ceramic composites were mainly attributed to the conductive loss and polarization loss induced by the synergistic effects of amorphous SiBCN matrix, rGO and SiC nanocrystals.
| Item Type: | Article |
|---|---|
| Erschienen: | 2021 |
| Creators: | Chen, Qingqing ; Li, Daxin ; Yang, Zhihua ; Jia, Dechang ; Zhou, Yu ; Riedel, Ralf ; Zhang, Tao ; Gao, Chenguang |
| Type of entry: | Bibliographie |
| Title: | SiBCN-reduced graphene oxide (rGO) ceramic composites derived from single-source-precursor with enhanced and tunable microwave absorption performance |
| Language: | English |
| Date: | 1 April 2021 |
| Publisher: | Pergamon-Elsevier Science |
| Journal or Publication Title: | Carbon |
| Volume of the journal: | 179 |
| DOI: | 10.1016/j.carbon.2021.03.057 |
| URL / URN: | https://www.sciencedirect.com/science/article/abs/pii/S00086... |
| Abstract: | SiBCN-reduced graphene oxide (SiBCN-rGO) ceramic composites with different rGO content derived from a single-source precursor were successful synthesized by polymer derived ceramics routes to tune their dielectric properties and electromagnetic wave absorption capacity. SiBCN-rGO ceramic composites with 6 wt% GO annealed at 1300 °C possessed the best microwave absorption performance obtaining the minimum reflection coefficient (RCmin) of −62.71 dB at 10.72 GHz, and the thin thickness of 2.17 mm. Adjusting its thickness to 1.58 mm could obtain the maximum effective absorption bandwidth (RC < −10 dB) of 4.32 GHz. The microwave absorption mechanisms of the as-prepared SiBCN-rGO ceramic composites were mainly attributed to the conductive loss and polarization loss induced by the synergistic effects of amorphous SiBCN matrix, rGO and SiC nanocrystals. |
| Uncontrolled Keywords: | SiBCN, Single-source-precursor, Dielectric properties, Electromagnetic wave absorption, EMW Absorbing Properties, Dielectric-Properties, Carbon Nanotubes, PDCS-SIBCN; C-N, Interference, Microstructure, Nanostructures, Nanocomposites, Lightweight |
| Divisions: | 11 Department of Materials and Earth Sciences 11 Department of Materials and Earth Sciences > Material Science 11 Department of Materials and Earth Sciences > Material Science > Dispersive Solids |
| Date Deposited: | 14 Jul 2021 05:58 |
| Last Modified: | 14 Jul 2021 05:58 |
| PPN: | |
| Projects: | National Natural Science Foundation of China (NSFC), Grant Numbers 52002092, 51832002, China Postdoctoral Science Foundation, Grant Numbers BX20190095, LBH-Z19141, 2019M660072, National Key Research and Development Program of China, grant Number 2017YFB0310400, Advanced Space Propulsion Laboratory of BICE, Beijing Engineering Research Center of Efficient and Green Aerospace Propulsion Technology, Grant Number LabASP-2019-08 |
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