Microwave absorption of M-type hexaferrite Ba1-xCaxFe12O19 (x ≤ 0.4) ceramics in 2.6–18 GHz
Source abstract
Abstract
Abstract Ba1-xCaxFe12O19 (x = 0.0, 0.1, 0.2, 0.3 and 0.4, BCFO) ceramics were prepared using high-temperature solid-state method and the effect of Ca2+ substitution was investigated. The grain size of BCFO ceramics sintered at 1250 °C for 2 h increases from 1 µm to 5 µm as Ca2+ added. The BCFO ceramics show a typical hard magnetic behavior with a maximum saturation magnetization (MS) of 51.8 emu g−1 at x = 0.2. The bandwidth of microwave reflection loss (RL) below − 10 dB (> 90.0% microwave absorption) is obtained in 7.60 − 9.8 GHz with the minimum RL − 30.8 dB at 8.5 GHz for x = 0.2 (thickness 2.0 mm), which makes Ba0.8Ca0.2Fe12O19 ceramic a potential microwave absorption candidate.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Magnetic Properties and Synthesis of Ferrites · Multiferroics and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (29)
Show source-provided references
1. Conducting, magnetic polyaniline/Ba0.25Sr0.75Fe11(Ni0.5Mn0.5)O19 nanocomposite: fabrication, characterization and application10.1016/j.jallcom.2015.05.146 ↗
2. NiFe2O4 nanoparticles filled BaTiO3 ceramics for high-performance electromagnetic interference shielding applications10.1016/j.ceramint.2018.02.011 ↗
3. Thin-thickness FeSiAl/flake graphite-filled Al2O3 ceramics with enhanced microwave absorption10.1016/j.ceramint.2016.09.139 ↗
4. Optimization of electromagnetic matching of carbonyl iron/BaTiO3 composites for microwave absorption10.1016/j.jmmm.2010.10.021 ↗
5. Investigation of Microwave Absorptive Behavior of La-Na Substituted M-Type Co-Zr Barium Hexaferrites in X-Band10.1007/s10948-016-3607-y ↗
6. Microwave absorption studies of magnetic sublattices in microwave sintered Cr3+ doped SrFe12O1910.1016/j.jmmm.2016.11.013 ↗
7. Simple and reproducible preparation of barium hexagonal ferrite by adsorbent combustion method10.1016/j.jallcom.2012.05.015 ↗
8. Enhanced microwave absorption properties of CTAB assisted Pr-Cu substituted nanomaterial10.1016/j.jmmm.2016.04.053 ↗
9. Y-type hexagonal ferrites for microwave absorber and antenna applications10.1016/j.jmmm.2015.12.027 ↗
10. Synthesis of Ca2+ doped SrLa-ferrite powder through molten salt assisted calcination process10.1016/j.jallcom.2018.06.203 ↗
11. Effect of lattice strain on structural and magnetic properties of Ca substituted barium hexaferrite10.1016/j.jmmm.2018.02.093 ↗
12. Effects of calcium doping on yttrium titanate for microwave absorbing applications10.1016/j.jallcom.2018.01.124 ↗
13. Modified crystal structure, dielectric properties, and magnetic phase transition temperature of Ca doped BiFeO3 ceramic10.1007/s10971-017-4541-6 ↗
14. Investigation on structural and microwave absorption property of Co2+ and Y3+ substituted M-type Ba-Sr hexagonal ferrites prepared by a ceramic method10.1016/j.jallcom.2016.09.251 ↗
15. Hysteresis analysis of Co-Ti substituted M-type Ba-Sr hexagonal ferrite10.1016/j.matlet.2009.06.002 ↗
16. Highly oriented flake carbonyl iron/carbon fiber composite as thin-thickness and wide-bandwidth microwave absorber10.1016/j.jallcom.2018.02.076 ↗
17. Tunable microwave absorption in Co-Al substituted M-type Ba-Sr hexagonal ferrite10.1016/j.matdes.2016.08.049 ↗
18. Exchange coupling controlled ferrite with dual magnetic resonance and broad frequency bandwidth in microwave absorption
19. Revised Effective Ionic Radii and Systematic Studies of Interatomie Distancesin Halides and Chaleogenides10.1107/S0567739476001551 ↗
20. J. Smit., H.P.J. W, Ferrites, 1959.
21. Low-loss Z-type barium hexaferrite composites from nanoscale ZnAl2O4 addition for high-frequency applications10.1063/1.5006780 ↗
22. Dielectric properties of carbon black and carbonyl iron filled epoxy-silicone resin coating10.1007/s10853-009-4173-5 ↗
23. Dielectric polarizabilities of ions in oxides and fluorides10.1063/1.353856 ↗
24. S.E. Jacobo, W.G. Fano, A.C. Razzitte, N.D. Digiovanni, V. Trainotti, Electrical insulation and dielectric phenomena, Ann. Rep. Conference, 1, 1998, pp. 273-276.10.1109/CEIDP.1998.733967 ↗
25. Effect of multi dopant barium hexaferrite nanoparticles on the structural, magnetic, and X-Ku bands microwave absorption properties10.1016/j.jallcom.2017.02.308 ↗
26. J. AK, Dielectric relaxation in solids, London, 1987.
27. Nitrogen-doped graphene and titanium carbide nanosheet synergistically reinforced epoxy composites as high-performance microwave absorbers10.1039/C7RA02417G ↗
28. Effect of heat treatment on the microwave electromagnetic properties of carbonyl iron/epoxy-silicone resin coatings10.1016/S1005-0302(10)60166-1 ↗
29. Structural, dielectric and magnetic properties of BaFe12-xAlxO19 hexaferrite thick films10.1016/j.jmmm.2017.05.087 ↗