High cyclic stability of electrocaloric effect in relaxor poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymers in the absence of ferroelectric phase transition

2019 ◽  
Vol 126 (23) ◽  
pp. 234102 ◽  
Author(s):  
Yang Liu ◽  
Guangzu Zhang ◽  
Aziguli Haibibu ◽  
Zhubing Han ◽  
Qing Wang
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Vinylidene Fluoride ◽  
Ferroelectric Phase ◽  
Cyclic Stability ◽  
Electrocaloric Effect ◽  
Poly Vinylidene Fluoride

Tuning the ferroelectric phase transition of PVDF by uniaxially stretching crosslinked PVDF films with CFCH bonds

2020 ◽  
Vol 8 (33) ◽  
pp. 11426-11440
Author(s):  
Xiao Wang ◽  
Baobao Qiao ◽  
Shaobo Tan ◽  
Weiwei Zhu ◽  
Zhicheng Zhang
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Vinylidene Fluoride ◽  
Ferroelectric Phase ◽  
Relaxor Ferroelectric ◽  
Artificial Muscles ◽  
Ferroelectric Polymers ◽  
Poly Vinylidene Fluoride ◽  
Electrostrictive Properties

Poly(vinylidene fluoride) (PVDF) based relaxor ferroelectric polymers show great potential for applications in transducers, sensors and artificial muscles for their excellent electrostrictive properties.

Effect of donor doping in B sites on the electrocaloric effect of BaTi1−xNbxO3 ceramics

RSC Advances ◽  
2015 ◽  
Vol 5 (88) ◽  
pp. 71873-71877 ◽  
Author(s):  
Yang Bai ◽  
Xi Han ◽  
Li-Jie Qiao
Keyword(s):  
Phase Transition ◽  
Ferroelectric Phase Transition ◽  
Ferroelectric Phase ◽  
Electrocaloric Effect ◽  
Donor Doping ◽  
Temperature Window ◽  
Lower Temperature

The donor doping of Nb5+ for Ti4+ in the B sites of BaTiO3 rapidly shifts the ferroelectric phase transition to a lower temperature and diffuses it, so that the electrocaloric ΔTmax gradually reduces and the temperature window becomes much wider.

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