Radio-frequency superradiance induced by the rheological explosion of polymer composites containing paramagnetic cobalt complexes

2016 ◽  
Vol 10 (1) ◽  
pp. 69-76 ◽  
Author(s):  
A. I. Aleksandrov ◽  
I. A. Aleksandrov ◽  
S. B. Zezin ◽  
E. N. Degtyarev ◽  
A. A. Dubinskiy ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Polymer Composites ◽  
Cobalt Complexes ◽  
Rheological Explosion

Radio Frequency Interference Characteristics of Plate-Like Soft Magnetic Powders-Polymer Composites

2006 ◽  
Vol 510-511 ◽  
pp. 826-829
Author(s):  
Sang Woo Kim ◽  
Y.W. Yoon ◽  
G.Y. Kim ◽  
Kyung Sub Lee
Keyword(s):  
Radio Frequency ◽  
Polymer Composites ◽  
Electromagnetic Interference ◽  
Noise Suppression ◽  
Compaction Pressure ◽  
Complex Permeability ◽  
Al Alloy ◽  
Radio Frequency Interference ◽  
Soft Magnetic ◽  
Dielectric Resonance

Radio frequency interference characteristics of plate-like Fe-Si-Al alloy powders-polymer composites were investigated for effective noise suppression. Broadband reflection loss characteristics were exhibited in the composites below a critical compaction pressure of 1.56 x 108 N/m2, while narrowband characteristics were shown in the composites above the critical pressure. Although the composites at 2.34 x 108 N/m2 had the highest complex permeability and complex permittivity, the loss properties did not show the broadband characteristics. The peculiar broadband characteristics were obtained in the composites with wideband dependency of the imaginary part of permittivity and permeability. These findings led us to conclude that the broadband electromagnetic interference characteristics of the composites are caused by the coupling effects of magnetic and dielectric resonance in the radio frequency range.

Rapid Heating of Silicon Carbide Fibers under Radio Frequency Fields and Application in Curing Preceramic Polymer Composites

2019 ◽  
Vol 11 (49) ◽  
pp. 46132-46139 ◽  
Author(s):  
Nutan Patil ◽  
Xiaofei Zhao ◽  
Naveen K. Mishra ◽  
Mohammad A. Saed ◽  
Miladin Radovic ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Radio Frequency ◽  
Polymer Composites ◽  
Rapid Heating ◽  
Preceramic Polymer ◽  
Silicon Carbide Fibers

scholarly journals Генерация сверхизлучения импульсным механическим воздействием

2020 ◽  
Vol 46 (7) ◽  
pp. 43
Author(s):  
А.И. Александров ◽  
В.Г. Шевченко ◽  
И.А. Александров
Keyword(s):  
High Pressure ◽  
Radio Frequency ◽  
Mechanical Activation ◽  
Mechanical Action ◽  
Binuclear Complexes ◽  
Processing Data ◽  
Rheological Explosion ◽  
Polystyrene Matrix

The effect of pulsed mechanical activation of radio-frequency superradiation in the parametric mode is established: when an external rheological explosion under high pressure acts on a paramagnetic composite --- a system of crossed spins based on binuclear complexes Co (QH) _2-O-Co (QH) 2 or Mn (QH) _2-O-Mn (QH) 2 (QH --- ligand based on 3,6-di-tert-butylpyrocatechol) in a polystyrene matrix. A possible method for processing data on pulsed mechanical action and a possible explanation of the effect are proposed.

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