Effects of BaTiO3 and FeAlSi as fillers on the magnetic, dielectric and microwave absorption characteristics of the epoxy-based composites
Source abstract
Abstract
Abstract A systematic study was carried out on the magnetic, dielectric and microwave absorption properties of the two-phase FeAlSi/epoxy and three-phase FeAlSi/BaTiO 3 /epoxy composites through experimental and simulation method. A percolation effect was observed in the dielectric, but not in the magnetic behavior of the FeAlSi/epoxy composites when the FeAlSi content was high. The 2D modeling shows that the high electric energy density is responsible for the high permittivity near the percolation threshold (49 vol%). On the other hand, the permeability of the composites matches well with the effective medium theory model (EMT), indicating that the permeability of FeAlSi/epoxy composite is more associated with the filler size and shape. Theoretical calculations show that the increment of the FeAlSi and BaTiO 3 loading, as well as the thickness will cause the absorption peak position to shift to low frequencies. The microwave absorption of these composites can be mainly attributed to the dielectric loss and magnetic loss.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Dielectric materials and actuators · Polymer Nanocomposites and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. Reliability modeling and assessment of embedded capacitors in organic substrates. Components and packaging technologies10.1109/TCAPT.2007.892095 ↗
2. Preparation and electrical properties of Bi2Zn2/3Nb4/3O7 thin films deposited at room temperature for embedded capacitor applications
3. BaTiO3 – epoxy composites for electronic applications10.1111/j.1744-7402.2009.02473.x ↗
4. Study of the dielectric properties of barium titanate polymer composites10.1016/j.actamat.2006.02.031 ↗
5. Nano- and microsize effect of CCTO fillers on the dielectric behavior of CCTO/PVDF composites10.1016/j.actamat.2011.05.034 ↗
6. Constitutive modeling of piezoelectric polymer composites10.1016/j.actamat.2004.07.037 ↗
7. Synthesis of electromagnetic functionalized nickel/polypyrrole core/shell composites10.1021/jp804327k ↗
8. Controlled synthesis of core–shell iron–silica nanoparticles and their magneto-dielectric properties in polymer composites10.1088/0957-4484/22/10/105601 ↗
9. Design and synthesis of hierarchical MnO2 nanospheres/carbon nanotubes/conducting polymer ternary composite for high performance electrochemical electrodes10.1021/nl101723g ↗
10. magnetodielectric effect in Graphene-PVA nanocomposites10.1021/jp203724f ↗
11. Physical properties of composites near percolation10.1146/annurev-matsci-070909-104529 ↗
12. Influence of particle size and polymer–filler coupling on viscoelastic glass transition of particle-reinforced polymers10.1021/ma7022364 ↗
13. Thermal and dielectric properties of the aluminum particle/epoxy resin composites10.1002/app.32442 ↗
14. Effect of the interface treatment on the dielectric behavior of composite materials of unsaturated polyester reinforced by Alfa fiber10.1016/j.jnoncrysol.2009.10.013 ↗
15. Microwave absorption of λ/4 wave absorbers using high permeability magnetic composites in quasimicrowave frequency band10.1063/1.2830827 ↗
16. The influence of interfaces on the dielectric properties of MnZn-based hybrid polymer composites10.1063/1.3028272 ↗
17. Dielectric and magnetic response of Fe3O4/epoxy composites10.1016/j.compositesa.2008.12.017 ↗
18. Size and concentration effect on permeability and EM-Wave absorption properties of hybrid ferrite polymer composites10.1109/TMAG.2009.2033347 ↗
19. High-frequency magnetic and dielectric properties of a three-phase composite of nickel, Co2Z ferrite and polymer10.1063/1.2206704 ↗
20. Low-loss composite material containing fine Zn-Ni-Fe flakes for high-frequency applications10.1109/TMAG.2009.2022405 ↗
21. Enhancement of the relative magnetic permeability of polymeric composites with hybrid particulate fillers10.1002/(SICI)1097-4628(19970815)65:7<1371::AID-APP15>3.0.CO;2-Y ↗
22. Fabrication, characterization and microwave properties of polyurethane nanocomposites reinforced with iron oxide and barium titanate nanoparticles10.1016/j.actamat.2008.09.024 ↗
23. Thermoplastic 0-3 ceramic polymer composites with adjustable magnetic and dielectric characteristics for radio frequency applications10.1111/j.1744-7402.2010.02493.x ↗
24. Magnetodielectric effect in trilayered Co65Fe35B20/PVDF/Co65Fe35B20 composite materials prediction and measurement for tunable microwave applications10.1063/1.3359437 ↗
25. Multifunctional SrTiO3/NiZn ferrite/POE composites with eletromagnetic and flexible properties for RF applications10.1007/s10832-007-9368-z ↗
26. Mossbauer effect study of ordering in Fe-Al-Si and Fe-Al-Si-Ni magnetic thin films10.1109/20.179515 ↗
27. Mechanosynthesis of nanostructured magnetic Ni–Zn ferrite10.1016/j.powtec.2009.03.008 ↗
28. Magnetodielectric thin film heterostructure with high permeability and permittivity10.1109/TMAG.2009.2025182 ↗
29. Composite electromagnetic wave absorber made of soft magnetic material and polystyrene resin and control of permeability and permittivity10.1016/j.jeurceramsoc.2009.05.044 ↗
30. Novel magnetodielectric nanomaterials with matching permeability and permittivity for the very-high-frequency applications10.1016/j.scriptamat.2010.09.045 ↗
31. Structure and electromagnetic characteristics of flaky FeSiAl powders made by melt-quenching10.1016/j.jallcom.2009.04.145 ↗
32. Resonance suppression of a spherical electromagnetic shielding enclosure by using conductive dielectrics10.1109/15.902313 ↗
33. Hydrothermal synthesis and microwave absorption properties of Fe3O4 mnanocrystals10.1088/0022-3727/42/5/055004 ↗
34. On the theory of ferromagnetic resonance absorption10.1103/PhysRev.73.155 ↗
35. A precise numerical prediction of effective dielectric constant for polymer-ceramic composite based on effective-medium theory10.1109/6144.888853 ↗
36. Electrical modulus analysis on the Ni/CCTO/PVDF system near the percolation threshold10.1088/0022-3727/44/47/475305 ↗
37. Synthesis of carbon nanotube/epoxy composite films with a high nanotube loading by a mixed-curing-agent assisted layer-by-layer method and their electrical conductivity10.1016/j.carbon.2010.02.016 ↗
38. Enhanced initial permeability and dielectric constant in a double-percolating Ni0.3Zn0.7Fe1.95O4 polymer composite10.1002/adfm.200500045 ↗
39. Permeability of hybrid soft magnetic composites10.1016/j.actamat.2011.03.053 ↗
40. Electrical and magnetic properties of magnesium ferrite ceramics doped with Bi2O310.1016/j.actamat.2007.08.011 ↗
41. A coherent model for the complex permeability in polycrystalline ferrites10.1109/20.104592 ↗
42. The effects of temperature and frequency on the dielectric properties, electromagnetic interference shielding and microwave-absorption of short carbon fiber/silica composites10.1016/j.carbon.2009.10.028 ↗
43. The architecture assembled from Ni nanocones and its microwave-absorbing properties10.1016/j.scriptamat.2010.07.040 ↗