Efficient single and bi-layer absorbers of CaTiO3 micro-cubes and polypyrrole nanotubes composites for enhanced microwave absorption in X and Ku band

2022 ◽  
Author(s):  
Jing Bai ◽  
Walid Kamal Abdelbasset ◽  
Safaa M. Elkholi ◽  
Khadiga Ahmed Ismail ◽  
Majid Niaz Akhtar
Keyword(s):  
Microwave Absorption ◽  
Polypyrrole Nanotubes ◽  
Ku Band

Facile synthesis of FeCo alloys with excellent microwave absorption in the whole Ku-band: Effect of Fe/Co atomic ratio

2017 ◽  
Vol 704 ◽  
pp. 289-295 ◽  
Author(s):  
Yan Cheng ◽  
Guangbin Ji ◽  
Zhaoyong Li ◽  
Hualiang Lv ◽  
Wei Liu ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Atomic Ratio ◽  
Facile Synthesis ◽  
Feco Alloys ◽  
Ku Band

2D MoS2/graphene composites with excellent full Ku band microwave absorption

RSC Advances ◽  
2016 ◽  
Vol 6 (108) ◽  
pp. 106187-106193 ◽  
Author(s):  
Xiaoxia Wang ◽  
Wenling Zhang ◽  
Xuqiang Ji ◽  
Baoqin Zhang ◽  
Mingxun Yu ◽  
...  
Keyword(s):  
Dielectric Loss ◽  
Microwave Absorption ◽  
High Dielectric Loss ◽  
High Dielectric ◽  
Ku Band

2D MoS2/graphene composites were proved to be promising full Ku band MA materials due to their superb high dielectric loss.

scholarly journals Preparation and Characterization of CuFe2O4 Nanoparticles by the Sol-Gel Method and Investigation of Its Microwave Absorption Properties at Ku-Band Frequency Using Silicone Rubber

Proceedings ◽  
2018 ◽  
Vol 2 (17) ◽  
pp. 1155 ◽  
Author(s):  
Reza Peymanfar ◽  
Farzaneh Azadi ◽  
Yousef Yassi
Keyword(s):  
Microwave Absorption ◽  
Silicone Rubber ◽  
Electromagnetic Waves ◽  
Sol Gel ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Band Frequency ◽  
Gel Method ◽  
Sol Gel Method ◽  
Ku Band

Recently, using microwave devices that emit electromagnetic waves and enhance the convenience of life have increased; however, they can be harmful to the environment. In this study, CuFe2O4 nanoparticles were prepared through the conventional sol-gel procedure and then were characterized by X-ray powder diffraction (XRD), vibrating sample magnetometer (VSM), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectroscopy (FT-IR), and vector network analyzer (VNA) using S parameters. Results illustrated that pure crystal structure of magnetic nanoparticles has been synthesized by the sol-gel method with magnetic saturation (Ms) of 22 emu/g. Finally, CuFe2O4 nanoparticles were composited by silicone rubber to investigate its microwave absorption properties. Results showed that the CuFe2O4/silicone rubber nanocomposite absorbed more than 94.87% of the microwave irradiation at ku-band frequency with 1.7 mm thickness and the maximum reflection loss was −60.38 dB at 16.1 GHz. Magnetic and dielectric properties of the CuFe2O4 nanoparticles and silicone rubber polymeric matrix in the nanocomposite demonstrated desirable microwave absorption properties.

Hollow MOF-Derived CoNi/C Composites as Effective Electromagnetic Absorbers in the X-band and Ku-band

2021 ◽  
Author(s):  
Yadi Yu ◽  
Yi Fang ◽  
Qi Hu ◽  
Xueni Shang ◽  
Chengchun Tang ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Metal Organic Frameworks ◽  
X Band ◽  
Metal Organic ◽  
Ku Band ◽  
Electromagnetic Absorbers

Metal organic frameworks (MOFs) derivatives have received extensive attentions in the field of microwave absorption due to their unique advantages and various properties. In this work, cubic hollow CoNi/C composites...

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