Thermal-stability of electric field-induced strain and energy storage density in Nb-doped BNKT-ST piezoceramics

2018 ◽  
Vol 38 (6) ◽  
pp. 2511-2519 ◽  
Author(s):  
Rizwan Ahmed Malik ◽  
Ali Hussain ◽  
Matias Acosta ◽  
John Daniels ◽  
Hyoung-Su Han ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Storage ◽  
Electric Field ◽  
Energy Storage Density ◽  
Storage Density ◽  
Thermal Stability Of ◽  
Electric Field Induced Strain

scholarly journals Improvement of electric field-induced strain and energy storage density properties in lead-free BNKT-based ceramics modified by BFT doping

RSC Advances ◽  
2019 ◽  
Vol 9 (21) ◽  
pp. 11922-11931 ◽  
Author(s):  
Pharatree Jaita ◽  
Ratabongkot Sanjoom ◽  
Narumon Lertcumfu ◽  
Gobwute Rujijanagul
Keyword(s):  
Energy Storage ◽  
Electric Field ◽  
Lead Free ◽  
Energy Storage Density ◽  
Storage Density ◽  
Electric Field Induced Strain

The effects of Ba(Fe0.5Ta0.5)O3 additive on phase, dielectric, ferroelectric, piezoelectric, electric field-induced strain, and energy storage density of the Bi0.5(Na0.80K0.20)0.5TiO3–0.03(Ba0.70Sr0.03)TiO3 ceramics have been investigated.

Temperature Dependence on Ferroelectric, Energy Storage Density, and Electric Field-Induced Strain Response of Lead-Free Bi0.485(Na0.388K0.097)Ba0.021Sr0.009TiO3 Ceramics

2019 ◽  
Vol 201 (1) ◽  
pp. 142-154
Author(s):  
Pharatree Jaita ◽  
Narumon Lertcumfu ◽  
Gobwute Rujijanagul
Keyword(s):  
Energy Storage ◽  
Electric Field ◽  
Temperature Dependence ◽  
Lead Free ◽  
Strain Response ◽  
Energy Storage Density ◽  
Storage Density ◽  
Optimum Density ◽  
Electric Field Induced Strain

In this research, Bi0.485(Na0.388K0.097)Ba0.021Sr0.009TiO3 or BNKBSrT ceramic sintered at various temperatures from 1100 °C to 1150 °C were investigated. The optimum density (5.80 g/cm3), mechanical (HK = 5.3 GPa, HV = 4.1 GPa, E = 62 GPa, and KIC = 1.35 MPa m1/2), dielectric (εr = 1525, tanδ = 0.0566), piezoelectric (d33 = 172 pC/N, g33 = 12 × 10−3 Vm/N), electric field-induced strain (Smax = 0.32%, d*33 = Smax/Emax = 640 pm/V, Q33 = 0.0340 m4/C2), and energy storage (W = 0.55 J/cm3, η = 67.2% @ 150 °C) were obtained for the ceramic sintered at 1125 °C.

BiFeO3–SrTiO3 thin film as a new lead-free relaxor-ferroelectric capacitor with ultrahigh energy storage performance

2017 ◽  
Vol 5 (12) ◽  
pp. 5920-5926 ◽  
Author(s):  
Hao Pan ◽  
Yi Zeng ◽  
Yang Shen ◽  
Yuan-Hua Lin ◽  
Jing Ma ◽  
...  
Keyword(s):  
Energy Storage ◽  
Relaxor Ferroelectric ◽  
Lead Free ◽  
Dielectric Films ◽  
Energy Storage Density ◽  
Ultrahigh Energy ◽  
Storage Density ◽  
Ferroelectric Capacitor ◽  
Storage Performance ◽  
Thermal Stability Of

We report ultrahigh energy storage density of 51 J cm−3 and good fatigue & thermal stability of BiFeO3-based lead-free dielectric films.

Composition-driven inverse-to-conventional transformation of electrocaloric effect and large energy storage density in strontium modified Ba(Zr0.1Ti0.9)O3 thin films

2020 ◽  
Vol 8 (4) ◽  
pp. 1366-1373 ◽  
Author(s):  
Yunlong Sun ◽  
Le Zhang ◽  
Haoyu Wang ◽  
Mengyao Guo ◽  
Xiaojie Lou ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Energy Storage ◽  
Synergistic Effects ◽  
Large Energy ◽  
Energy Storage Density ◽  
Electrocaloric Effect ◽  
Excellent Thermal Stability ◽  
Storage Density

Composition-tunable electrocaloric effect and large energy storage density with excellent thermal stability arising from synergistic effects of polar nano-regions and conformed defect dipoles were discovered in (Ba1−xSrx)Zr0.1Ti0.9O3 thin films.

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