Synthesis of broad microwave absorption bandwidth Zr4+-Ni2+ ions gradient-substituted barium ferrite
Source abstract
Abstract
Abstract In this study, to effectively broaden the absorption bandwidth of M-type barium ferrite (BaM) in frequency range 2–18 GHz, Zr4+-Ni2+ ions gradient-substituted BaM samples were synthesized via secondary heating the mixtures of homogeneous-substituted Ba(ZrNi)0.6Fe10.8O19 and Ba(ZrNi)0.7Fe10.6O19. Effects of primary and secondary heat treatment on electromagnetic (EM) parameters of gradient-substituted BaM were investigated in detail. Permittivity values of samples are mainly controlled by primary heat treatment, enhancing with increasing temperature, whereas magnetic loss range is enlarged by improving primary and secondary heat treatment. As a result, the frequency range with μ" value > 0.3 reaches to 6.84 GHz for the sample “1400–1200 °C”. Enhanced dielectric and magnetic losses contribute high attenuation constant over wide frequency range, finally resulting in broad absorption bandwidth of 6.24 GHz at matching thickness of 2.8 mm. The bandwidth improved by 21% and 44% compared to that of original Ba(ZrNi)0.6Fe10.8O19 and Ba(ZrNi)0.7Fe10.6O19, respectively. This study sheds new light on the preparation of broadband absorbing materials.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Magnetic Properties and Synthesis of Ferrites · Advanced Antenna and Metasurface Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (37)
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1. The tunable magnetic and microwave absorption properties of the Nb5+-Ni2+ co-doped M-type barium ferrite10.1039/C7TC00393E ↗
2. Coin-like a-Fe2O3@CoFe2O4 core-shell composites with excellent electromagnetic absorption performance10.1021/am508438s ↗
3. CoNi@SiO2@TiO2 and CoNi@Air@TiO2 microspheres with strong wideband microwave absorption10.1002/adma.201503149 ↗
4. Microwave absorption properties of CoS2 nanocrystals embedded into reduced graphene oxide10.1021/acsami.7b06982 ↗
5. Broadband metamaterial for optical transparency and microwave absorption
6. Preparation of hierarchical core-shell C@NiCo2O4@Fe3O4 composites for enhanced microwave absorption performance10.1016/j.cej.2016.12.005 ↗
7. Ultralight Fe@C nanocapsules/sponge composite with reversibly tunable microwave absorption performances
8. Verwey transition in ultrasmall-sized octahedral Fe3O4 nanoparticles10.1021/jp501652e ↗
9. Facile preparation and microwave absorption properties of porous Co/CoO microrods10.1016/j.jallcom.2017.06.011 ↗
10. Achieving better impedance matching by a sulfurization method through converting Ni into NiS/Ni3S4 composites10.1039/C7TC05503J ↗
11. Broadband all fiber-reinforced composite radar absorbing structure integrated by inductive frequency selective carbon fiber fabric and carbon-nanotube-loaded glass fabrics10.1016/j.carbon.2016.06.005 ↗
12. 3D Fe3O4 nanocrystals decorating carbon nanotubes to tune electromagnetic properties and enhance microwave absorption capacity10.1039/C5TA02782A ↗
13. Microwave absorbing polymer-derived ceramics from cobalt coordinated poly(dimethylsilylene)diacetylenes10.1021/acs.jpcc.6b03995 ↗
14. Synthesis of CuFe2O4-ZnO nanocomposites with enhanced electromagnetic wave absorption properties10.1016/j.jallcom.2017.01.264 ↗
15. Application of yolk–shell Fe3O4@N-doped carbon nanochains as highly effective microwave-absorption material10.1007/s12274-017-1767-0 ↗
16. A broadband far-field microwave absorber with a sandwich structure10.1016/j.matdes.2016.01.096 ↗
17. Wide bandwidth pyramidal absorbers of granular ferrite and carbonyl iron powders10.1109/20.908766 ↗
18. Multi-susceptibile single-phased ceramics with both considerable magnetic and dielectric properties by selectively doping10.1038/srep09498 ↗
19. Zr4+ doping-controlled permittivity and permeability of BaFe12-xZrxO19 and the extraordinary EM absorption power in the millimeter wavelength frequency range10.1039/C6TC03430F ↗
20. Excellent absorption properties of BaFe12-xNbxO19 controlled by multi-resonance permeability, enhanced permittivity, and the order of matching thickness10.1039/C7CP03014B ↗
21. An unusual radiation dose dependent EPR line at geff=2.54 in feldspars: possible evidence of Fe3+O2-↔Fe2+O- and exchange coupled Fe3+-Fe2+-nO-10.1088/0953-8984/20/02/025224 ↗
22. Modified composition of barium ferrite to act as a microwave absorber in X-band frequencies10.1016/j.ssc.2009.10.011 ↗
23. Cationic distribution, magnetization and magnetic anisotropy of Co2+ doped M-type barium ferrite10.1016/0304-8853(90)90588-H ↗
24. Hexagonal ferrites: a review of the synthesis, properties and applications of hexaferrite ceramics10.1016/j.pmatsci.2012.04.001 ↗
25. Enhancing the lithium storage performance of iron oxide composites through partial substitution with Ni2+ or Co2+10.1039/c1jm13263f ↗
26. Broadened ferromagnetic resonance range in ferrite by gradient composition design10.1016/j.ceramint.2019.08.107 ↗
27. Exchange coupling controlled ferrite with dual magnetic resonance and broad frequency bandwidth in microwave absorption10.1088/1468-6996/14/4/045002 ↗
28. Formation of BaFe12−xNbxO19 and its high electromagnetic wave absorption properties in millimeter wave frequency range10.1111/jace.14925 ↗
29. Microstructural and magnetic studies on BaMgxZnxX2xFe12-4xO19 (X=Zr, Ce, Sn) prepared via mechanical activation method to act as a microwave absorber in x-band10.1016/j.jmmm.2016.01.020 ↗
30. Synthesis and characterization of nano crystalline BaFe12O19 powders by low temperature combustion10.1016/S0025-5408(02)00979-0 ↗
31. Unusual continuous dual absorption peaks in Ca-doped BiFeO3 nanostructures for broadened microwave absorption10.1039/C6NR00223D ↗
32. Double-layer microwave absorber based on CoFe2O4 ferrite and carbonyl iron composites10.1016/j.jallcom.2013.09.049 ↗
33. Facile design of a ZnO nanorod-Ni core-shell composite with dual peaks to tune its microwave absorption properties10.1039/C6RA28835A ↗
34. Facile synthesis and enhanced microwave absorption properties of multiferroic Ni0.4Co0.2Zn0.4Fe2O4/BaTiO3 composite10.1016/j.jallcom.2017.12.047 ↗
35. Investigation of cobalt substituted M-type barium ferrite synthesized via coprecipitation method for radar absorbing material in Ku-band (12–18 GHz)10.1016/j.ceramint.2018.01.028 ↗
36. Mn, Ti substituted barium ferrite to tune electromagnetic properties and enhanced microwave absorption10.1007/s10854-016-4404-x ↗
37. Microwave absorption properties of Ce-substituted M-type barium ferrite10.1016/j.jmmm.2011.09.023 ↗