Results 31 to 40 of about 277,283 (253)

Nonlinear effects in a cell with a solid electrolyte based on protonated potassium polytitanate [PDF]

open access: yesЭлектрохимическая энергетика, 2022
In this paper, the electrochemical and electrophysical properties of protonated potassium polytitanate synthesized at pH values varying from 3.11 to 8.88 depending on the magnitude of the polarization voltage and the magnitude of the measured signal were
Makarova, Anna Dmitrievna   +7 more
doaj   +1 more source

Local dielectric permittivity near an interface [PDF]

open access: yesEurophys. Lett. 63 (2003): 381-387, 2003
A statistical mechanics expression is derived for the space-dependent dielectric permittivity of a polar solvent near an interface. The asymptotic behaviour of this local permittivity is calculated in the low density limit, near a planar interface.
arxiv   +1 more source

High energy efficiency nanodielectrics with relaxor ferroelectric polymer and antiferroelectric (Pb0.97La0.02) (Zr0.63Sn0.3Ti0.07)O3 ceramics

open access: yesIET Nanodielectrics, 2021
Dielectric materials with high‐energy‐density and low‐energy‐loss have received lot of attention in terms of renewable energy storage and application. PVDF‐based polymer/ceramics composite dielectrics are considered as one of the most promising materials
Jian Wang   +5 more
doaj   +1 more source

Dielectric behaviors of carbon nanotube/silicone elastomer composites

open access: yesScience and Engineering of Composite Materials, 2015
Carbon nanotubes (CNTs) with different aspect ratios were modified by a silane coupling agent. The modified CNTs were embedded into a silicone elastomer (SE) matrix to obtain the composites.
Li Hongyan   +5 more
doaj   +1 more source

Greatly enhanced breakdown strength and energy density in ultraviolet‐irradiated polypropylene

open access: yesIET Nanodielectrics, 2021
Polymer dielectrics have drawn great attentions for applications in advanced electronic devices and power grids because of their high breakdown strength, low dielectric loss, and excellent flexibility.
Jiayu Chen   +7 more
doaj   +1 more source

Perfect absorption and giant magnification with a thin metamaterial layer [PDF]

open access: yes, 2011
It is shown that perfect absorption and giant amplification can be realized when a wave impinges on a special metamaterial layer with zero real parts of the permittivity and permeability.
Alekseyev   +17 more
core   +3 more sources

Colossal Permittivity Materials as Superior Dielectrics for Diverse Applications

open access: yesAdvanced Functional Materials, 2019
Ever since the beginning of this century, many kinds of materials have been reported to demonstrate colossal permittivity (CP) or a colossal dielectric constant exceeding 103.
Yanbin Wang   +4 more
semanticscholar   +1 more source

A Concise and Time-efficient Method for Characterizing the Permittivity of Unknown Materials [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
We propose a simplified and time-efficient methodology to characterize the permittivity of unknown materials. Based on the transmission line method, this method enables permittivity extraction using a small number of dielectric materials under test (MUT).
Junhyuk Ahn, Youngno Youn, Wonbin Hong
doaj   +1 more source

L‐band depolarised radar back scattering from Martian topographic surface: A numerical study

open access: yesIET Radar, Sonar & Navigation, 2021
The interaction of radar signals with a planetary surface is critical for the utility of radar data. Herein, a power‐law roughness spectrum is used to model the roughness and an inhomogeneous vertical permittivity to describe the dielectrics from the ...
Ying Yang   +3 more
doaj   +1 more source

Low-loss Materials for high Q-factor Bragg Reflector Resonators [PDF]

open access: yesAppl.Phys.Lett.92:032901,2008, 2008
A Bragg resonator uses dielectric plates within a metallic cavity to confine the energy within a central free space region. The importance of the permittivity is shown with a better Q-factor possible using higher permittivity materials of larger intrinsic dielectric losses.
arxiv   +1 more source

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