Microstructure and electromagnetic wave absorption property of reduced graphene oxide-SiCnw/SiBCN composite ceramics
Source abstract
Abstract
Abstract In this account, RGO-SiCnw/SiBCN composite ceramics were fabricated using polymer derived ceramic (PDC) combined with chemical vapor infiltration (CVI) technology. Dielectric property of as-obtained RGO-SiCnw/SiBCN composite ceramics was significantly enhanced thanks to established conductive pathway through overlapped nanoscale SiCnw and micro-sized RGO. The minimum RC of composite ceramics with 0.5 wt% GO and 2.29 wt% SiCnw at thickness of 3.6 mm reached -42.02 dB with corresponding effective absorption bandwidth (EAB) of 4.2 GHz. As temperature rose from 25 to 400 °C, permittivity increased with enhanced charge carrier density and then it decreased due to oxidation process of RGO from 400 to 600 °C. The minimum reflection coefficient (RC) was recorded as -39.13 dB and EAB covered the entire X-band at 600 °C. EMW absorption ability was evaluated after high-temperature oxidation experiment under protective effect of wave-transparent Si3N4 coating. RGO-SiCnw/SiBCN composite ceramics maintained outstanding EMW absorption ability with minimum RC of -10.41 dB after oxidation at 900 °C, indicating RGO-SiCnw/SiBCN composite ceramics with excellent EMW absorption characteristic even at high temperatures and harsh environments.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Microwave Dielectric Ceramics Synthesis · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. A review of absorption properties in silicon-based polymer derived ceramics10.1016/j.jeurceramsoc.2016.02.002 ↗
2. Electromagnetic properties of Si–C–N based ceramics and composites10.1179/1743280414Y.0000000037 ↗
3. Dielectric and microwave absorption properties of polymer derived SiCN ceramics annealed in N2 atmosphere10.1016/j.jeurceramsoc.2013.08.042 ↗
4. Electrical, dielectric and microwave-absorption properties of polymer derived SiC ceramics in X band10.1016/j.jallcom.2013.02.176 ↗
5. A silicoboron carbonitride ceramic stable to 2,000°C10.1038/382796a0 ↗
6. Polymer-derived ceramics: 40 Years of Research and innovation in advanced ceramics10.1111/j.1551-2916.2010.03876.x ↗
7. Novel silicon‐boron‐carbon‐nitrogen materials thermally stable up to 2200°C10.1111/j.1151-2916.2001.tb00984.x ↗
8. The microstructure and dielectric properties of SiBCN ceramics FabricatedVia LPCVD/CVI10.1111/jace.13730 ↗
9. Effect of SiBCN content on the dielectric and EMW absorbing properties of SiBCN-Si3N4 composite ceramics
10. Three-dimensional graphene materials: preparation, structures and application in supercapacitors10.1039/C4EE00050A ↗
11. Ablation behavior of graphene reinforced SiBCN ceramics in an oxyacetylene combustion flame10.1016/j.corsci.2015.07.006 ↗
12. Microstructure, oxidation and thermal shock resistance of graphene reinforced SiBCN ceramics10.1016/j.ceramint.2015.11.127 ↗
13. Preparation and properties of reduced graphene oxide/fused silica composites10.1016/j.carbon.2014.05.004 ↗
14. Lightweight and flexible graphene foam composites for high-performance electromagnetic interference shielding10.1002/adma.201204196 ↗
15. Single-source-precursor derived RGO/CNTs-SiCN ceramic nanocomposite with ultra-high electromagnetic shielding effectiveness10.1016/j.actamat.2017.03.031 ↗
16. Microstructure and properties of SiCw/SiC composites prepared by gel-casting combined with precursor infiltration and pyrolysis10.1016/j.ceramint.2017.10.031 ↗
17. Absorption properties of twinned SiC nanowires reinforced Si3N4 composites fabricated by 3d-printing10.1016/j.matlet.2015.06.106 ↗
18. Synthesis and microwave absorption properties of SiC nanowires reinforced SiOC ceramic10.1016/j.jeurceramsoc.2013.08.029 ↗
19. Hierarchical graphene/SiC nanowire networks in polymer-derived ceramics with enhanced electromagnetic wave absorbing capability10.1016/j.jeurceramsoc.2016.04.003 ↗
20. Dielectric and EMW absorbing properties of PDCs-SiBCN annealed at different temperatures10.1016/j.jeurceramsoc.2013.01.006 ↗
21. Effects of multi-walled carbon nanotubes on the crystallization behavior of PDCs-SiBCN and their improved dielectric and EM absorbing properties10.1016/j.jeurceramsoc.2013.11.044 ↗
22. Growth of SiC nanowires by low pressure chemical vapor infiltration using different catalysts10.1016/j.jeurceramsoc.2016.04.004 ↗
23. In-situ synthesis of hierarchically porous and polycrystalline carbon nanowires with excellent microwave absorption performance10.1016/j.carbon.2016.05.045 ↗
24. On the cooperativity of the beta-relaxation: a discussion based on dielectric relaxation and thermally stimulated depolarisation currents data10.1039/b005867j ↗
25. Electrical and thermal properties of carbon nanotube bulk materials: experimental studies for the 328–958 K temperature range10.1103/PhysRevB.75.205407 ↗
26. Preparation and oxidation resistance of 2D C/SiC composites modified by partial boron carbide self-sealing matrix10.1016/j.msea.2008.08.022 ↗
27. Co-enhanced SiO2-BN ceramics for high-temperature dielectric applications10.1016/S0955-2219(00)00107-2 ↗
28. Dielectric and mechanical properties of porous SiN ceramics prepared via low temperature sintering10.1016/j.ceramint.2008.09.010 ↗
29. Microstructure and mechanical properties of Lu2O3 -doped porous silicon nitride ceramics using phenolic resin as pore-forming agent10.1111/j.1744-7402.2008.02347.x ↗
30. Some new perspective on oxidation of silicon carbide and silicon nitride10.1111/j.1151-2916.1991.tb04348.x ↗
31. High temperature self-healing SiBCN ceramics derived from hyperbranched polyborosilazanes
32. Oxidation behavior of SiC–SiBCN ceramics10.1016/j.ceramint.2014.09.025 ↗
33. Si3N4 and Si2N2O for high performance radomes10.1016/0025-5416(85)90236-8 ↗
34. Dielectric and microwave absorption properties of SiCnw-SiBCN composite ceramics deposited via chemical vapor infiltration10.1016/j.jallcom.2018.08.006 ↗
35. Effect of porosity and grain size on the microwave dielectric properties of sintered alumina10.1111/j.1151-2916.1997.tb03066.x ↗
36. Microstructure and electromagnetic wave absorption properties of RGO-SiBCN composite ceramic via PDC technology10.1016/j.ceramint.2018.07.106 ↗
37. Porous Co-C core-shell nanocomposites derived from Co-MOF-74 with enhanced electromagnetic wave absorption performance10.1021/acsami.8b00965 ↗
38. Dielectric and electromagnetic wave absorption properties of reduced graphene oxide/barium aluminosilicate glass–ceramic composites10.1016/j.ceramint.2016.01.098 ↗
39. Electrical, dielectric and microwave-absorption properties of polymer derived SiC ceramics in X band10.1016/j.jallcom.2013.02.176 ↗
40. Dielectric and microwave-absorption properties of SiC nanoparticle/SiBCN composite ceramics10.1016/j.jeurceramsoc.2013.08.005 ↗
41. Lightweight spongy bone-like graphene@SiC aerogel composites for high-performance microwave absorption10.1016/j.cej.2017.12.131 ↗
42. Reduced graphene oxide decorated with in-situ growing ZnO nanocrystals: facile synthesis and enhanced microwave absorption properties10.1016/j.carbon.2016.06.084 ↗
43. Synthesis and characterization of a new liquid polymer precursor for Si–B–C–N ceramics10.1007/s10853-011-5549-x ↗