Ferroelectric polymer composite as radio absorbing material (RAM) for 5th generation stealth fighter aircraft

2020 ◽  
Author(s):  
Ayush Sharma ◽  
Sudheendra S. Kulkarni ◽  
Udaykumar V. Khadke
Keyword(s):  
Polymer Composite ◽  
Fighter Aircraft ◽  
Ferroelectric Polymer ◽  
Absorbing Material

scholarly journals An ultra-broadband single-component fractional-order capacitor using MoS2-ferroelectric polymer composite

2018 ◽  
Vol 113 (9) ◽  
pp. 093505 ◽  
Author(s):  
Agamyrat Agambayev ◽  
Mohamed Farhat ◽  
Shashikant P. Patole ◽  
Ali H. Hassan ◽  
Hakan Bagci ◽  
...  
Keyword(s):  
Polymer Composite ◽  
Fractional Order ◽  
Single Component ◽  
Ferroelectric Polymer

Ferroelectric and Luminescent Properties of Electroluminescence Devices Using Ferroelectric Polymer-Phosphor Composite Films

2008 ◽  
Vol 388 ◽  
pp. 137-140 ◽  
Author(s):  
Koji Aizawa ◽  
Yusuke Ohtani
Keyword(s):  
Polymer Composite ◽  
Remnant Polarization ◽  
Polyvinylidene Fluoride ◽  
Ferroelectric Phase ◽  
Composite Films ◽  
Luminescent Properties ◽  
Polarization Reversal ◽  
Transparent Conductive Oxides ◽  
Glass Substrates ◽  
Ferroelectric Polymer

We fabricated and characterized electroluminescence (EL) devices using ferroelectric polyvinylidene fluoride/trifluoroethylene (PVDF/TrFE) copolymer composites mixed with Mn- and Cu-activated ZnS phosphor particles. Spin-coated polymer composite films on glass substrates with transparent conductive oxides were dried at 140 oC for 1 h in vacuum due to growth of ferroelectric phase. The maximum remnant polarization and luminescence of the fabricated devices were approximately 20 μC/cm2 and 100 cd/m2, respectively. Increases of the luminescence were observed in the fabricated EL devices using PVDF/TrFE copolymer in comparison with using PVDF polymer as dielectrics. EL emission intensities were also enhanced by applying the bipolar pulses. These results suggest an effect of polarization reversal in the composite films.

Pyroelectric properties of ferroelectric‐polymer composite

1993 ◽  
Vol 74 (1) ◽  
pp. 521-524 ◽  
Author(s):  
Yuguo Wang ◽  
Weilie Zhong ◽  
Peilin Zhang
Keyword(s):  
Polymer Composite ◽  
Pyroelectric Properties ◽  
Ferroelectric Polymer

Effects of Fatigue on Cognitive Performance in Long-Duration Simulated Flight Missions

2020 ◽  
Vol 10 (2) ◽  
pp. 82-93
Author(s):  
Eduardo Rosa ◽  
Ola Eiken ◽  
Mikael Grönkvist ◽  
Roger Kölegård ◽  
Nicklas Dahlström ◽  
...  
Keyword(s):  
Executive Functions ◽  
Task Performance ◽  
Cognitive Performance ◽  
Cognitive Tasks ◽  
Fatigue Index ◽  
Fighter Aircraft ◽  
Long Duration ◽  
Metacognitive Accuracy

Abstract. Fighter pilots may be exposed to extended flight missions. Consequently, there is increasing concern about fatigue. We investigated the effects of fatigue and cognitive performance in a simulated 11-hr mission in the 39 Gripen fighter aircraft. Five cognitive tasks were used to assess cognitive performance. Fatigue was measured with the Samn–Perelli Fatigue Index. Results showed that performance in the non-executive task degraded after approximately 7 hr. Fatigue ratings showed a matching trend to the performance in this task. Performance in tasks taxing executive functions did not decline. We interpreted that fatigue can be overridden by increased attentional effort for executive tasks but not for non-executive components of cognition. Participants underestimated their performance and metacognitive accuracy was not influenced by fatigue.

FSUE "VIAM" solvent-free binders for polymer composite materials

2016 ◽  
Vol 2 (2) ◽  
pp. 37-42 ◽  
Author(s):  
E. N. Kablov ◽  
L. V. Chursova ◽  
A. N. Babin ◽  
R. R. Mukhametov ◽  
N. N. Panina
Keyword(s):  
Composite Materials ◽  
Polymer Composite ◽  
Solvent Free ◽  
Polymer Composite Materials
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