Acta Metallurgica Sinica (English Letters) ›› 2018, Vol. 31 ›› Issue (2): 171-179.DOI: 10.1007/s40195-017-0612-5
Special Issue: 2018年复合材料专辑
• Orginal Article • Previous Articles Next Articles
Pei-Jiang Liu1,2,3, Zheng-Jun Yao1,2(), Vincent Ming Hong Ng3, Jin-Tang Zhou1,2, Zhi-Hong Yang1, Ling-Bing Kong3(
)
Received:
2017-06-21
Revised:
2017-06-21
Online:
2018-02-20
Published:
2018-03-20
About author:
About author:Lin Lv and Feng-Qing Wang have contributed equally to this work.
Pei-Jiang Liu, Zheng-Jun Yao, Vincent Ming Hong Ng, Jin-Tang Zhou, Zhi-Hong Yang, Ling-Bing Kong. Enhanced Microwave Absorption Properties of Double-Layer Absorbers Based on Spherical NiO and Co0.2Ni0.4Zn0.4Fe2O4 Ferrite Composites[J]. Acta Metallurgica Sinica (English Letters), 2018, 31(2): 171-179.
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Fig. 7 a Reflection loss curves of the double-layer absorbers consisting of matching layer (NiO) and absorption layer (CNZF). b Reflection loss curves of the double-layer absorbers consisting of matching layer (CNZF) and absorption layer (NiO). c Reflection loss curves of the double-layer absorbers consisting of the fixed matching layer thickness (1.7 mm) filled with NiO and varied absorption layer thicknesses from 0.9 to 2.1 mm filled with CNZF
Absorption layer | Matching layer | Absorption layer thickness (mm) | Total thickness (mm) | Minimum R L value (dB) | Bandwidth R L < -10 dB (GHz) | References |
---|---|---|---|---|---|---|
50 wt% carbon black powder | 50 wt% carbonyl iron powder | 2.0 | 4.0 | -10.0 | 3.2 | [ |
60 wt% BaCo2Fe16O27 powder | 60 wt% BaFe12O19 and short carbon fiber | 1.0 | 2.0 | -22.0 | 3.2 | [ |
30 wt% Mn-Zn ferrite powder | 10 wt% silica fume powder | 20.0 | 30.0 | -15.0 | 4.6 | [ |
5.2 wt% La-doped MWCNTs | 8 wt% MWCNTs | 2.0 | 4.0 | -30.2 | 2.5 | [ |
30 wt% BaTiO3 | 30 wt% CNT/BaTiO3 | 2.0 | 1.3 | -63.7 | 1.7 | [ |
30 wt% Co0.2Ni0.4Zn0.4Fe2O4 | 30 wt% NiO | 1.3 | 3.0 | -42.5 | 3.5 | This work |
30 wt% Co0.2Ni0.4Zn0.4Fe2O4 | 30 wt% NiO | 1.7 | 3.2 | -67.0 | 3.9 | This work |
Table 1 Reported microwave absorption properties of recent some double-layer absorbers
Absorption layer | Matching layer | Absorption layer thickness (mm) | Total thickness (mm) | Minimum R L value (dB) | Bandwidth R L < -10 dB (GHz) | References |
---|---|---|---|---|---|---|
50 wt% carbon black powder | 50 wt% carbonyl iron powder | 2.0 | 4.0 | -10.0 | 3.2 | [ |
60 wt% BaCo2Fe16O27 powder | 60 wt% BaFe12O19 and short carbon fiber | 1.0 | 2.0 | -22.0 | 3.2 | [ |
30 wt% Mn-Zn ferrite powder | 10 wt% silica fume powder | 20.0 | 30.0 | -15.0 | 4.6 | [ |
5.2 wt% La-doped MWCNTs | 8 wt% MWCNTs | 2.0 | 4.0 | -30.2 | 2.5 | [ |
30 wt% BaTiO3 | 30 wt% CNT/BaTiO3 | 2.0 | 1.3 | -63.7 | 1.7 | [ |
30 wt% Co0.2Ni0.4Zn0.4Fe2O4 | 30 wt% NiO | 1.3 | 3.0 | -42.5 | 3.5 | This work |
30 wt% Co0.2Ni0.4Zn0.4Fe2O4 | 30 wt% NiO | 1.7 | 3.2 | -67.0 | 3.9 | This work |
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