Results 1 to 10 of about 88,080 (193)

Energy storage properties of P(VDF‐TrFE‐CTFE)‐based composite dielectrics with uniform and gradient‐doped boron nitride nanosheets

open access: yesIET Nanodielectrics, 2022
Dielectric capacitors play an important role in advanced electronic and power systems such as portable electronic devices, hybrid electric vehicles and electronic weapon systems, and the improvement of energy storage density will have a positive effect ...
Yanan Shang   +8 more
doaj   +1 more source

Significantly improved high-temperature energy storage performance of commercial BOPP films by utilizing ultraviolet grafting modification

open access: yesiEnergy, 2022
Commercial biaxially oriented polypropylene (BOPP) film capacitors have been widely applied in the fields of electrical and electronic engineering. However, due to the sharp increase in electrical conduction loss as the temperature rises, the energy ...
Qingguo Chi   +8 more
doaj   +1 more source

Self-assembled wide bandgap nanocoatings enabled outstanding dielectric characteristics in the sandwich-like structure polymer composites

open access: yesNano Convergence, 2022
Polymer dielectrics are insulators or energy storage materials widely used in electrical and electronic devices. Polymer dielectrics are needed with outstanding dielectric characteristics than current technologies.
Tian-Yu Wang   +8 more
doaj   +1 more source

Tunable polarization-drived superior energy storage performance in PbZrO3 thin films

open access: yesJournal of Advanced Ceramics, 2023
Antiferroelectric PbZrO3 (AFE PZO) films have great potential to be used as the energy storage dielectrics due to the unique electric field (E)-induced phase transition character. However, the phase transition process always accompanies a polarization (P)
Tiandong Zhang   +7 more
doaj   +1 more source

Casimir stress in an inhomogeneous medium [PDF]

open access: yes, 2009
The Casimir effect in an inhomogeneous dielectric is investigated using Lifshitz's theory of electromagnetic vacuum energy. A permittivity function that depends continuously on one Cartesian coordinate is chosen, bounded on each side by homogeneous ...
Ball   +35 more
core   +1 more source

Effect of Temperature on Space Charge Distribution in Two Layers of Transformer Oil and Impregnated Pressboard Under DC Voltage

open access: yesIEEE Access, 2020
The space charge accumulation is an important factor to design the oil-pressboard composite insulation of convertor transformer, which is greatly affected by the temperature.
Jinfeng Zhang   +4 more
doaj   +1 more source

Investigation of structural and electrical characteristics of PZT ceramics modified with donor and acceptor dopants [PDF]

open access: yesCerâmica, 2023
Lead-based (PZT) ferroelectric ceramic materials were prepared utilizing the solid-state reaction method as a pure and doped with different additives.
M. N. Al-Aaraji, A. H. Uqla
doaj   +1 more source

The issue of photons in dielectrics: Hamiltonian viewpoint

open access: yes, 1993
The definition of the photon in the vacuum of general relativity provided by Kermack et al. and by Synge is extended to nondispersive, nonhomogeneous, isotropic dielectrics in arbitrary motion by Hamiltonian methods that rely on Gordon's effective metric.
Antoci, S., Mihich, L.
core   +4 more sources

Low-Frequency Vibration Sensor with a Sub-nm Sensitivity Using a Bidomain Lithium Niobate Crystal

open access: yesSensors, 2019
We present a low-frequency sensor for the detection of vibrations, with a sub-nm amplitude, based on a cantilever made of a single-crystalline lithium niobate (LiNbO3) plate, with a bidomain ferroelectric structure.
Ilya V. Kubasov   +9 more
doaj   +1 more source

Experimental Characterization of Electrical Discharge Machining of Aluminum 6061 T6 Alloy using Different Dielectrics [PDF]

open access: yes, 2019
Electrical discharge machining is a non-traditional machining method broadly employed in industries for machining of parts that have typical profiles and require great accuracy.
Ismail, S. O.   +4 more
core   +4 more sources

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