Tunable microwave absorbing property of RGO/Fe3O4/SiO2 nanocomposites by effective regulation of eddy current effect

2021 ◽  
Vol 130 (17) ◽  
pp. 175101
Author(s):  
Yahong Zhang ◽  
Xiaoyan Lv ◽  
Yi Zhang ◽  
Zhiyang Jiang ◽  
Chunhong Gong
Keyword(s):  
Eddy Current ◽  
Current Effect ◽  
Eddy Current Effect ◽  
Tunable Microwave ◽  
Sio2 Nanocomposites ◽  
Microwave Absorbing Property ◽  
Microwave Absorbing ◽  
Absorbing Property

Tunable microwave absorbing property of LaxFeO3/C by introducing A-site cation deficiency

2019 ◽  
Vol 30 (14) ◽  
pp. 13474-13487 ◽  
Author(s):  
Zhenguo Gao ◽  
Zirui Jia ◽  
Jiaoqiang Zhang ◽  
Ailing Feng ◽  
Zhengyong Huang ◽  
...  
Keyword(s):  
Cation Deficiency ◽  
Tunable Microwave ◽  
Microwave Absorbing Property ◽  
Microwave Absorbing ◽  
Absorbing Property ◽  
A Site

scholarly journals Resonant Diaphragm Liquid Density Sensor

2011 ◽  
Vol 1 ◽  
pp. 121-124
Author(s):  
Yu Xiao Zhang ◽  
Xian Quan Zeng ◽  
Xin Jie Wang
Keyword(s):  
Residual Stress ◽  
Eddy Current ◽  
Processing Technology ◽  
Liquid Density ◽  
Current Effect ◽  
Eddy Current Effect

This paper designs a resonant diaphragm liquid density sensor. From the reality, a resonant diaphragm is designed and manufactured. Processing technology on resonant diaphragm is studied and improved through compensating elastic error, and eliminating residual stress. Incentive coil is designed using the eddy current effect.

Effect of Structure Modification on the Microwave Absorbing Performance of Carbon Foams

2011 ◽  
Vol 197-198 ◽  
pp. 536-539 ◽  
Author(s):  
Zhi Gang Fang ◽  
Yu Xin Gao ◽  
Chun Fang
Keyword(s):  
Electric Conductivity ◽  
Carbon Foam ◽  
Structure Design ◽  
Structure Modification ◽  
Replication Process ◽  
Microwave Absorbing Properties ◽  
Carbon Foams ◽  
Microwave Absorbing Property ◽  
Microwave Absorbing ◽  
Absorbing Property

Carbon foams were prepared by a polymer sponge replication process and their microwave absorbing properties were investigated. The electric conductivity of carbon foam has a direct effect on its microwave absorbing property, as the carbon foam with a medium electric conductivity of 0.46S/m has got a relatively excellent microwave absorbing property and demonstrated a characteristic of broadband absorption. Some structure modification has been made on carbon foams to fruther imrove their microwave absorbing performance. The result shows that making slots, especially gradient slots on the surface of carbon foams can greatly improve their microwave absorbing properties, while the reflection coefficients for a three-layered carbon foam structure exceeds -10dB with the combination effect of multilayer structure design and parameters gradient variatioin in the whole frequency range of 2.6-18GHz, which is usually to be considered as the practical application standard for microwave absorbing materials.

scholarly journals The Preparation of FeCo/ZnO Composites and Enhancement of Microwave Absorbing Property by Two-Step Method

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3259
Author(s):  
Ka Gao ◽  
Junliang Zhao ◽  
Zhongyi Bai ◽  
Wenzheng Song ◽  
Rui Zhang
Keyword(s):  
Single Phase ◽  
Effective Bandwidth ◽  
Frequency Range ◽  
Step Method ◽  
Absorption Properties ◽  
Composite Surface ◽  
Microwave Absorbing Properties ◽  
Microwave Absorbing Property ◽  
Microwave Absorbing ◽  
Absorbing Property

In this paper, the flower-like FeCo/ZnO composites were successfully firstly prepared by a two-step method, and their microstructures and microwave absorbing properties were characterized. The results show that with an increase of temperature, the content of ZnO loaded on a FeCo/ZnO composite surface was increased. The optimal reflection loss (RL) value can be reached around −53.81 dB at 9.8 GHz, which is obviously superior to results of previous studies and reports, and its effective bandwidth (RL < −10 dB) is 3.8 GHz in the frequency range of 8.7–11.8 GHz with a matching thickness of 1.9 mm. We considered that a large number of lamellar and rod-like ZnO loaded on nano-FeCo single-phase solid solution by two-step method can significantly improve the electromagnetic wave absorption properties.

scholarly journals Enhanced low-frequency microwave absorbing property of SCFs@TiO2 composite

2018 ◽  
Vol 333 ◽  
pp. 153-159 ◽  
Author(s):  
Hongjing Wu ◽  
Shaohua Qu ◽  
Kejun Lin ◽  
Yuchang Qing ◽  
Liuding Wang ◽  
...  
Keyword(s):  
Low Frequency ◽  
Microwave Absorbing Property ◽  
Microwave Absorbing ◽  
Absorbing Property
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