Influence of NiCrAlY content on dielectric and microwave absorption properties of NiCrAlY/Al2O3 composite coatings

2019 ◽  
Vol 777 ◽  
pp. 478-484 ◽  
Author(s):  
Liang Zhou ◽  
Gexin Su ◽  
Hongbo Wang ◽  
Julong Huang ◽  
Yajie Guo ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Composite Coatings ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Al2o3 Composite

Synthesis, Characterization, and Microwave Absorption Properties of SrFe12O19 Ferrites and FeNi3 Nanoplatelets Composites

2010 ◽  
Vol 148-149 ◽  
pp. 893-896 ◽  
Author(s):  
Ze Yang Zhang ◽  
Xiang Xuan Liu ◽  
You Peng Wu
Keyword(s):  
Electron Microscopy ◽  
Microwave Absorption ◽  
Composite Coatings ◽  
Sol Gel ◽  
X Ray Diffraction ◽  
Absorption Properties ◽  
Filling Fraction ◽  
Microwave Absorption Properties ◽  
Phase Reduction ◽  
Transmission Electron

M-typical SrFe12O19 ferrites and FeNi3 nanoplatelets were successfully prepared by the sol-gel method and solution phase reduction method, respectively. The crystalline and morphology of particles were studied by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The composite coatings with SrFe12O19 ferrites and FeNi3 nanoplatelets in polyvinylchloride matrix were prepared. The microwave absorption properties of these coatings were investigated in 2-18GHz frequency range. The results showed that the M-typical SrFe12O19 ferrites and FeNi3 nanoplatelets were obtained and they presented irregular sheet shapes. With the increase of the coating thickness, the absorbing peak value moves to the lower frequency. The absorbing peak values of the wave increase along with the increasing of the content of FeNi3 nanoplatelets filling fraction. When 40% SrFe12O19 ferrites is doped with 20% mass fraction FeNi3 nanoplatelets to prepare composite with 1.5mm thickness, the maximum reflection loss is -24.8 dB at 7.9GHz and the -10 dB bandwidth reaches 3.2GHz.

Dielectric and microwave absorption properties of KNN/Al2O3 composite ceramics

2017 ◽  
Vol 43 (15) ◽  
pp. 12731-12735 ◽  
Author(s):  
Lu Gao ◽  
Wancheng Zhou ◽  
Fa Luo ◽  
Dongmei Zhu ◽  
Jie Wang
Keyword(s):  
Microwave Absorption ◽  
Composite Ceramics ◽  
Absorption Properties ◽  
Microwave Absorption Properties ◽  
Al2o3 Composite
Sign in / Sign up

Export Citation Format

Share Document