Results 31 to 40 of about 21,022 (289)

Sintering densification driven by orientation fluctuation in textured BaTiO3 ceramics with abnormal comprehensive ferroelectric properties

open access: yesJournal of Advanced Ceramics
A new sintering densification method without the aid of a liquid phase is proposed for preparing [001]c-textured BaTiO3 ceramics with high ferroelectric performance.
Fangzhe Li   +5 more
doaj   +1 more source

Accurate meso-scale dynamics by kinetic Monte Carlo simulation via free energy multicanonical sampling: oxygen vacancy diffusion in BaTiO3

open access: yesScience and Technology of Advanced Materials: Methods, 2021
A conceptually accurate method to connect the free energy multicanonical sampling to meso-scale kinetic Monte Carlo (kMC) dynamics is proposed. The required input parameters for kMC simulation are the attempt frequency and activation energy for each ...
Hiroya Nakata   +4 more
doaj   +1 more source

Experimental study and first-principles calculation of structural characteristics and dielectric properties of BaTi1-xCexO3 ceramics

open access: yesCailiao gongcheng, 2023
BaTiO3 has advantages of high permittivity, low dielectric loss, low cost and environment friendly. However, due to the nonlinear dielectric behavior occurred around the phase transition temperature of BaTiO3 ceramic, its availability in the field of ...
WANG Fenglin   +5 more
doaj   +1 more source

High-temperature BaTiO3-based ternary dielectric multilayers for energy storage applications with high efficiency

open access: yes, 2021
High-temperature BaTiO3-based ceramic capacitors have broad application prospects in energy storage devices. However, energy density and efficiency of BaTiO3-based ceramic capacitors are bottleneck challenges that limit the applications of ceramic ...
Liu, Wen-Feng   +8 more
core   +1 more source

Piezo-photoelectric all-in-one coaxial hierarchical TiO2-BaTiO3-CuInS2 heterostructure for synergistic water splitting

open access: yes, 2022
Rational multiple-field coupling, component control, and microarchitectures design for utilization of multiform driving forces as well as benefiting charge-carrier separation and migration is considered to be an outstanding approach to improve water ...
X Wang (1378959)   +7 more
core   +1 more source

Dielectric, ferroelectric and optical properties of Na and Nb co-doped (Bi0.5Na0.5)0.94Ba0.06TiO3

open access: yesФізика і хімія твердого тіла, 2021
[(Bi0.5Na0.5)0.94Ba0.06]1-xNaTi1-xNbO3 (x = 0.5 and 0.10) ceramics were prepared via conventional solid-state sintering route. X-ray diffraction analysis of the samples exhibited the formation of the cubic structure.
Asif Ali, Hina Zahid
doaj   +1 more source

Historical Foundation and Practical Guideline for Ferroelectric Switching Kinetic Studies

open access: yesAdvanced Functional Materials, EarlyView.
The P and U pulses in the conventional PUND measurements are not identical because of the interplay between switching current and the measurement circuit components. This circuit effect can lead to a shift in polarization transients and misinterpreted physics in the switching kinetics.
Yi Liang, Pat Kezer, John T. Heron
wiley   +1 more source

Strain-Adaptive Dielectric Metamaterials via Bioinspired "Ligament-Bone" Architecture for Ultrahigh-Energy Capacitive Storage. [PDF]

open access: yesAdv Sci (Weinh)
A bioinspired strain‐adaptive ligament‐bone architecture achieves record‐high energy density of 26.1 J cm−3 and 90% efficiency at 600 MV m−1, coupled with a Young's modulus of 2.13 GPa. ABSTRACT Polymer dielectrics for capacitive energy storage face fundamental trade‐offs between breakdown strength, energy density, efficiency, and mechanical robustness.
Wang J   +6 more
europepmc   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

open access: yesAdvanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang   +12 more
wiley   +1 more source

Microstructure of Ba1−xLaxTiO3−δ ceramics sintered by spark plasma sintering [PDF]

open access: yes, 2011
Nano-sized Ba1−xLaxTiO3 (0.00 ≤ x ≤ 0.14) powders were prepared by a coprecipitation method and calcined at 850 °C in air. The corresponding ceramics were obtained by Spark Plasma Sintering (SPS) at 1050 °C.
N. El Horr   +7 more
core   +1 more source

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