Thin-thickness FeSiAl/flake graphite-filled Al2O3 ceramics with enhanced microwave absorption
Source abstract
Abstract
Abstract Thin and enhanced microwave absorption FeSiAl/ flake graphite (FG) filled Al 2 O 3 ceramics were fabricated by low power plasma spraying. The characteristics of the sprayed ceramics, such as phase composition, microstructure, electromagnetic (EM) properties and reflection loss (RL) were investigated. Suitable values and frequency dependence of the complex permittivity of the FeSiAl/ FG filled Al 2 O 3 ceramics can be obtained in the Ku-band due to the larger internal boundary layer capacitance and the combination of the advantages of the FeSiAl and FG. RL values less than −7 dB (larger than 80% absorption) can be obtained in the whole Ku-band for the FeSiAl/FG filled Al 2 O 3 ceramics with a sample thickness of 0.8 mm. These results suggest a possible use of these ceramics as effective microwave absorbing materials for EM applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Advanced Antenna and Metasurface Technologies · Metamaterials and Metasurfaces Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
Show source-provided references
1. Recent progress in some composite materials and structures for specific electromagnetic applications10.1179/1743280412Y.0000000011 ↗
2. Graphene nanosheet- and flake carbonyl iron particle-filled epoxy–silicone composites as thin– thickness and wide-bandwidth microwave absorber10.1016/j.carbon.2015.01.002 ↗
3. Temperature dependence of the electromagnetic properties of graphene nanosheet reinforced alumina ceramics in the X-band10.1039/C6TC01163B ↗
4. Flexible graphene/polymer composite films in sandwich structures for effective electromagnetic interference shielding10.1016/j.carbon.2013.08.043 ↗
5. Electromagnetic shielding performance of carbon foams10.1016/j.carbon.2011.12.053 ↗
6. One-pot synthesis of CoFe2O4/graphene oxide hybrids and their conversion into FeCo/graphene hybrids for lightweight and highly efficient microwave absorber10.1039/C4TA05718J ↗
7. Preparation of barium hexaferrite coatings using atmospheric plasma spraying10.1016/j.jeurceramsoc.2009.01.028 ↗
8. Thermal spraying and the fabrication of coatings with tailored electromagnetic properties10.1016/j.ica.2008.03.063 ↗
9. Thermal spraying of Co,Ti-substituted Ba-hexaferrite coatings for electromagnetic wave absorption applications10.1016/j.surfcoat.2009.04.007 ↗
10. Characterisation of plasma-sprayed SrFe12O19 coatings for electromagnetic wave absorption10.1016/j.jeurceramsoc.2011.02.003 ↗
11. Effects of zinc loss on the magnetic properties of plasma-sprayed MnZn ferrites10.1016/j.actamat.2004.03.032 ↗
12. Dielectric and microwave absorbing properties of low power plasma sprayed Al2O3/Nb composite coatings10.1016/j.mseb.2011.09.001 ↗
13. Influence of ZnO content and annealing temperature on the dielectric properties of ZnO/Al2O3 composite coatings10.1016/j.jallcom.2011.03.018 ↗
14. Enhanced dielectric and electromagnetic interference shielding properties of FeSiAl/Al2O3 ceramics by plasma spraying10.1016/j.jallcom.2015.08.107 ↗
15. Electromagnetic and microwave absorbing properties of the composites containing flaky FeSiAl powders mixed with MnO2 in 1–18GHz10.1016/j.jmmm.2015.10.093 ↗
16. Enhanced microwave absorption properties of the milled flake-shaped FeSiAl/graphite composites10.1016/j.jallcom.2012.08.114 ↗
17. Structure and electromagnetic characteristics of flaky FeSiAl powders made by melt-quenching10.1016/j.jallcom.2009.04.145 ↗
18. Crystal structure and microwave permeability of very thin Fe–Si–Al flakes produced by microforging10.1063/1.1556219 ↗
19. Effect of attrition time on the microwave permeability of magnetic Fe-Si-Al flakes10.1063/1.3673813 ↗
20. Atmosphere plasma-sprayed carbon nanotubes/cordierite nanocomposite coatings for microwave absorption applications10.1007/s11666-014-0103-4 ↗
21. Electromagnetic and microwave absorption properties of carbonyl iron and carbon fiber filled epoxy/ silicone resin coatings10.1007/s00339-010-5738-5 ↗
22. A review and analysis of microwave absorption in polymer composites filled with carbonaceous particles10.1063/1.3688435 ↗
23. Evolution of double magnetic resonance behavior and electromagnetic properties of flake carbonyl iron and multi–walled carbon nanotubes filled epoxy–silicone10.1016/j.jallcom.2013.09.002 ↗
24. Ultrathin graphene: electrical properties and highly efficient electromagnetic interference shielding10.1039/C5TC01354B ↗
25. Graphene nanosheets/ BaTiO3 ceramics as highly efficient electromagnetic interference shielding materials in the X-band10.1039/C5TC03035H ↗
26. Dielectric properties of carbon black and carbonyl iron filled epoxy–silicone resin coating10.1007/s10853-009-4173-5 ↗
27. Temperature dependent microwave absorption of ultrathin graphene composites10.1039/C5TC02185E ↗
28. Multiwalled carbon nanotubes–BaTiO3/silica composites with high complex permittivity and improved electromagnetic interference shielding at elevated temperature10.1016/j.jeurceramsoc.2014.02.007 ↗
29. Dielectric and microwave absorption properties of plasma sprayed Cr/Al2O3 composite coatings10.1016/j.ceramint.2015.08.024 ↗
30. Fabrication and microwave absorbing properties of Li0.35Zn0.3Fe2.35O4 micro-belts/nickel-coated carbon fibers composites10.1016/j.ceramint.2012.08.079 ↗
31. Double-layer electromagnetic wave absorber based on barium titanate/carbon nanotube nanocomposites10.1016/j.ceramint.2015.04.065 ↗
32. Epoxy–silicone filled with multi– walled carbon nanotubes and carbonyl iron particles as a microwave absorber10.1016/j.carbon.2010.07.014 ↗