J. Mater. Sci. Technol. ›› 2019, Vol. 35 ›› Issue (9): 1931-1939.DOI: 10.1016/j.jmst.2019.05.021
• Orginal Article • Previous Articles Next Articles
Peng Wanga, Junming Zhanga, Guowu Wanga, Benfang Duana, Donglin Hea, Tao Wangab*(), Fashen Lia
Received:
2019-01-10
Revised:
2019-03-11
Accepted:
2019-04-26
Online:
2019-09-20
Published:
2019-07-26
Contact:
Wang Tao
About author:
1 These authors contributed equally to this work.
Peng Wang, Junming Zhang, Guowu Wang, Benfang Duan, Donglin He, Tao Wang, Fashen Li. Synthesis and characterization of MoS2/Fe@Fe3O4 nanocomposites exhibiting enhanced microwave absorption performance at normal and oblique incidences[J]. J. Mater. Sci. Technol., 2019, 35(9): 1931-1939.
Fig. 3. (a) SEM image of MoS2 NSs, (b, c) TEM images of Fe@Fe3O4 NPs, (d) SAED pattern of Fe@Fe3O4 NPs, (e) HRTEM image of the core-shell structure in Fig. 3(c), (f) HRTEM image of the Fe core, (g) TEM image of Fe-30, (h-k) elemental mappings of Fe-30.
Fig. 9. (a) 3D plot of the RL of Fe-60 as a function of thickness and frequency, (b) RL-f curve for a Fe-60 thickness of 1.96 mm, (c) RL projection of Fe-60 in the t-f plane, and (d) RL-f curve for a Fe-60 thickness of 1.52 mm.
Absorber | Peak intensity (dB) | Peak frequency (GHz) | Frequency band (GHz) | Bandwidth (GHz) | Thickness (mm) | Reference |
---|---|---|---|---|---|---|
Fe-60 | -39.46 | 11.10 | 9.49-13.39 | 3.90 | 1.96 | This study |
SiC | -16.23 | 11.47 | 10.55-12.40 | 1.85 | 1.90 | [ |
NiCrAlY/Al2O3 | -13.00 | 9.25 | 8.72-9.80 | 1.08 | 1.90 | [ |
CNT/TiO2 | -32.14 | 10.33 | 9.22-12.00 | 2.78 | 2.00 | [ |
Fe-60 | -31.80 | 15.30 | 13.20-18.00 | 4.80 | 1.52 | This study |
RGO/MWCNT/ZnFe2O4 | -19.20 | 15.00 | 13.75-16.37 | 2.62 | 1.50 | [ |
C/N co-doped MoO2 | -25.00 | 16.82 | 14.40-18.00 | 3.60 | 1.50 | [ |
Graphene@Ni@C | -34.20 | 13.90 | 12.00-15.20 | 3.20 | 1.60 | [ |
Table 1 Representative microwave absorption data of some previously reported absorbers.
Absorber | Peak intensity (dB) | Peak frequency (GHz) | Frequency band (GHz) | Bandwidth (GHz) | Thickness (mm) | Reference |
---|---|---|---|---|---|---|
Fe-60 | -39.46 | 11.10 | 9.49-13.39 | 3.90 | 1.96 | This study |
SiC | -16.23 | 11.47 | 10.55-12.40 | 1.85 | 1.90 | [ |
NiCrAlY/Al2O3 | -13.00 | 9.25 | 8.72-9.80 | 1.08 | 1.90 | [ |
CNT/TiO2 | -32.14 | 10.33 | 9.22-12.00 | 2.78 | 2.00 | [ |
Fe-60 | -31.80 | 15.30 | 13.20-18.00 | 4.80 | 1.52 | This study |
RGO/MWCNT/ZnFe2O4 | -19.20 | 15.00 | 13.75-16.37 | 2.62 | 1.50 | [ |
C/N co-doped MoO2 | -25.00 | 16.82 | 14.40-18.00 | 3.60 | 1.50 | [ |
Graphene@Ni@C | -34.20 | 13.90 | 12.00-15.20 | 3.20 | 1.60 | [ |
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