Effect of SiC/C preform densities on the mechanical and electromagnetic interference shielding properties of dual matrix SiC/C–SiC composites
Source abstract
Abstract
Abstract SiC/C–SiC composites were fabricated via a chemical vapor infiltration (CVI) method using porous SiC/C composites as preform. The influences of the SiC/C preform densities on the mechanical, microstructure and electromagnetic interference shielding properties (EMI) of the SiC/C–SiC composites have been studied. Results show that the SiC/C–SiC composites densities increase with increasing the SiC/C preform densities. When the SiC/C preform density is 1.21 g/cm 3 , the flexural strength, shear strength and toughness of the corresponding SiC/C–SiC composite can reach 220 MPa, 20.98 MPa and 10.21 MPa m 1/2 , respectively. The surface reflection (SE R ) and the internal absorption (SE A ) both increase with increasing the SiC/C preform densities. The enhancement of the EMI is mainly attributed to the formation of conductive networks by the continuous pyrolytic carbon (PyC) matrix and the surface reflection is the dominant shielding mechanism.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Aluminum Alloys Composites Properties · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
Show source-provided references
1. Electromagnetic interference shielding using continuous carbon-fiber carbon -matrix and polymer-matrix composites10.1016/S1359-8368(98)00065-1 ↗
2. The role of electronic and ionic conduction in the electrical conductivity of carbon fiber reinforced cement10.1016/j.carbon.2006.03.013 ↗
3. Polymer/carbon based composites as electromagnetic interference (EMI) shielding materials10.1016/j.mser.2013.06.001 ↗
4. Electromagnetic interference shielding of grapheme/epoxy composites10.1016/j.carbon.2008.12.038 ↗
5. EMI shielding effectiveness of carbon based nanostructured polymeric materials: a comparative study10.1016/j.carbon.2013.04.008 ↗
6. Effect of MnO2 additive on the dielectric and electromagnetic interference shielding properties of sintered cement based ceramics10.1016/j.ceramint.2011.07.055 ↗
7. Electromagnetic interference shielding and dielectric properties of SiCf/SiC composites containing pyrolytic carbon interphase10.1016/j.carbon.2013.03.061 ↗
8. Current status and recent research achievements in SiC/SiC composites10.1016/j.jnucmat.2014.06.003 ↗
9. Mechanical and dielectric properties of 2.5D SiCf/SiC–Al2O3 composites prepared via precursor infiltration and pyrolysis10.1016/j.msea.2013.12.040 ↗
10. Stress-dependent matrix cracking in 2D woven SiC-fiber reinforced melt-infiltrated SiC matrix composites10.1016/j.compscitech.2003.10.022 ↗
11. Dielectric, electromagnetic absorption and interference shielding properties of porous yttria-stabilized zirconia (YSZ)/silicon carbon composites10.1016/j.ceramint.2011.11.008 ↗
12. Effect of chemical vapor infiltration of SiC on the mechanical and electromagnetic properties of Si3N4–SiC ceramic10.1016/j.scriptamat.2010.05.034 ↗
13. Mechanical and microwave dielectric properties of SiCf/SiC composites with BN interphase prepared by dip-coating process10.1016/j.jeurceramsoc.2012.02.009 ↗
14. Dielectric properties of the SiC fibre-reinforced SiC matrix composites with the CVD interphase10.1016/j.jallcom.2009.09.163 ↗
15. Synthesis and electromagnetic shielding property of pyrolytic carbon–silicon nitride ceramics with dense silicon nitride coating10.1111/j.1551-2916.2011.04930.x ↗
16. Effects of thermal oxidation on electromagnetic interference shielding properties of SiCf/SiC composites10.1016/j.ceramint.2012.11.007 ↗
17. Electromagnetic interference shielding effectiveness of SiCf/SiC composites with PIP–SiC interphase after thermal oxidation in air10.1007/s10853-013-7834-3 ↗
18. Preparation and characterization of a kind of magnetic carbon fibers used as electromagnetic shielding materials10.1016/j.jallcom.2011.10.061 ↗
19. Microstructure and mechanical properties of C/C–SiC composites fabricated by a rapid processing method10.1016/j.jeurceramsoc.2009.04.036 ↗
20. Effect of PyC interphase thickness on mechanical behaviors of SiBC matrix modified C/SiC composites fabricated by reactive melt infiltration10.1016/j.carbon.2014.05.092 ↗
21. Effect of thick SiC interphase layers on microstructure, mechanical and thermal properties of reaction-bonded SiC/SiC composites10.1016/j.jpcs.2004.06.034 ↗
22. The effect of heat treatment on the strength and toughness of carbon fiber/silicon carbide composites with different pyrolytic carbon interphase thickness10.1016/j.carbon.2013.01.076 ↗
23. Effect of multilayer coating on mechanical properties of Nicalon-fibre-reinforced silicon carbide composites10.1007/BF01139148 ↗
24. Influence of pyrolytic carbon interface thickness on microstructure and mechanical properties of SiC/SiC composits by NITE process10.1016/j.compscitech.2007.05.037 ↗
25. Electromagnetic interference shielding mechanisms of CNT/polymer composites10.1016/j.carbon.2009.02.030 ↗
26. Tough graphene-polymer microcellular foams for electromagnetic interference shielding10.1021/am200021v ↗
27. Complex permittivity and microwave absorbing properties of SiC fiber woven fabrics10.1007/s10853-010-5140-x ↗
28. DC electrical conductivity of silicon carbide ceramic and composites for flow channel insert applications10.1016/j.jnucmat.2008.12.237 ↗