Results 11 to 20 of about 345,268 (272)

Greatly enhanced permittivity in BaTiO3-epoxy dielectric composites with improved connectivity of ceramic phase

open access: yesJournal of Materiomics, 2021
BaTiO3-epoxy dielectric composites were prepared by curing the liquid epoxy monomer that infiltrated into the partially-sintered BaTiO3 porous ceramics.
Meng Cao   +4 more
doaj  

Dielectric anisotropy in polar solvents under external fields [PDF]

open access: yesJ. Stat. Mech. P08022 (2015), 2014
We investigate dielectric saturation and increment in polar liquids under external fields. We couple a previously introduced dipolar solvent model to a uniform electric field and derive the electrostatic kernel of interacting dipoles. This procedure allows an unambiguous definition of the liquid dielectric permittivity embodying non-linear dielectric ...
arxiv   +1 more source

Dielectric properties of interacting storage ring plasmas [PDF]

open access: yesPhys.Rev.E59:1015-1023,1999; Erratum-ibid.E69:039902,2004, 1998
A dielectric function including collisional correlations is derived by linearizing the self consistent Vlasov equation with a Fokker-Planck collision integral. The calculation yields the same type of dielectric function as in the standard-theory of Schottky-noise in storage rings. This dielectric function is compared with the Mermin-dielectric function
arxiv   +1 more source

The Role of the Accumulated Surface Charge on Nanoparticles in Improving the Breakdown Strength of Liquid and Solid Insulation

open access: yesEnergies, 2022
In this paper, the role of the accumulated surface charge on the surfaces of nanoparticles on breakdown strength for liquid and solid dielectrics is presented. The breakdown strengths of a nanofilled liquid dielectric and a solid dielectric are evaluated.
Mohamed E. Ibrahim   +4 more
doaj   +1 more source

Super Dielectric Materials [PDF]

open access: yes, 2014
Evidence is provided that a class of materials with dielectric constants greater than 100,000, herein called super dielectric materials (SDM), can be generated readily from common, inexpensive materials.
arxiv   +1 more source

Molecular Association Studies on Polyvinyl Alcohol at Different Concentrations

open access: yesAdvances in Materials Science and Engineering, 2018
Ultrasonic velocities, densities, and viscosities have been measured for the solution of polyvinyl alcohol in water at concentration range of 0.3% to 1% at temperature 35°C.
Richa Saxena, S. C. Bhatt
doaj   +1 more source

Enhanced dielectric response and non-Ohmic properties of Ge-doped CaTiO3/CaCu3Ti4O12

open access: yesJournal of Asian Ceramic Societies, 2022
We present a method for increasing the dielectric constant of CaTiO3/CaCu3Ti4O12 (CTO/CCTO) composites and retaining a low-loss tangent (tanδ) by doping with Ge dopant.
Jirata Prachamon   +7 more
doaj   +1 more source

Modeling of the evolution of dielectric loss with processing temperature in ferroelectric and dielectric thin oxide films [PDF]

open access: yes, 2008
It was experimentally found that the evolution of dielectric loss with processing temperature displays a common trend in ferroelectric and dielectric thin oxide films: firstly an increase and then a decrease in dielectric loss when the processing temperature is gradually raised. Such a dielectric response of ferroelectric/dielectric thin films has been
arxiv   +1 more source

Frequency-dependent dielectric function of semiconductors with application to physisorption [PDF]

open access: yesPhys. Rev. B 95, 035203 (2017), 2016
The dielectric function is one of the most important quantities that describes the electrical and optical properties of solids. Accurate modeling of the frequency-dependent dielectric function has great significance in the study of the long-range van der Waals (vdW) interaction for solids and adsorption.
arxiv   +1 more source

PIC Simulations of One-side Multipactor on Dielectric [PDF]

open access: yes, 2022
Breakdown of dielectric RF windows is an important issue for particle accelerators and high-power RF sources. One of the generally considered reasons for the RF windows failure is the multipactor on dielectric surface. The multipactor may be responsible for excessive heating of dielectric and discharge of charges that accumulated in ceramic due to ...
arxiv   +1 more source

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