Results 11 to 20 of about 207,215 (341)

PVC nanocomposites for cable insulation with enhanced dielectric properties, partial discharge resistance and mechanical performance

High Voltage, 2020
The current study aims to develop polyvinyl chloride (PVC) nanocomposites with enhanced electrical and mechanical properties by incorporating titanium oxide (TiO(2)) nanoparticles within PVC chains.
Nagat M.K. Abdel-Gawad, Adel Z. El Dein, Diaa-Eldin A. Mansour, Hanaa M. Ahmed, Mohamed M.F. Darwish, Matti Lehtonen   +5 more
doaj   +1 more source

Rigid/flexible molecular structure‐induced polyimide aerogels with ultralow permittivity and thermal insulation properties

IET Nanodielectrics, 2023
A series of high‐performance linear and cross‐linked polyimide (PI) aerogels with different molecular structures have been successfully synthesised using the freeze‐drying process.
Xiaodi Dong, Baoquan Wan, Lin Qiu, Ming‐Sheng Zheng, Jiefeng Gao, Jun‐Wei Zha   +5 more
doaj   +1 more source

The tunable permittivity of multi-walled carbon nanotubes/silver nanoparticles reinforced polyvinyl alcohol (PVA) nanocomposites at low frequency

Materials Research Express, 2018
This paper is about tailoring high permittivity of multi-walled carbon nanotubes/silver nanoparticles (MWNT-AgNP) filled polyvinyl alcohol (PVA) nanocomposites at low frequency. PVA/MWNT-AgNP nanocomposites were synthesized via solution-casting technique
Yusliza Yusof, Zi Yi Ng, Yew Hoong Wong, Mohd Rafie Johan   +3 more
doaj   +1 more source

Effect of different surface treatment agents on the physical chemistry and electrical properties of polyethylene nano-alumina nanocomposites

High Voltage, 2020
Generally, the electrical properties of nanocomposite are affected by the type, size, filling concentration and surface treatment process of the nanoparticle.
Xuhui Duan, Wah Hoon Siew, Wah Hoon Siew, Martin Given, John Liggat, Jinliang He   +5 more
doaj   +1 more source

Field-driven merging of polarizations and enhanced electrocaloric effect in BaTiO3-based lead-free ceramics

Journal of Advanced Ceramics, 2022
Solid-state cooling technology based on electrocaloric effect (ECE) has been advanced as an alternative to replace the vapour-compression approach to overcome the releasing of the global warming gases.
Xiang Niu, Xiaodong Jian, Weiping Gong, Wei Liang, Xuetian Gong, Guangzu Zhang, Shenglin Jiang, Kun Yu, Xiaobo Zhao, Yingbang Yao, Tao Tao, Bo Liang, Sheng-Guo Lu   +12 more
doaj   +1 more source

The Role of Probe Attenuation in the Time-Domain Reflectometry Characterization of Dielectrics [PDF]

, 2010
The influence of the measurement setup on the estimation of dielectric permittivity spectra from time-domain reflectometry (TDR) responses is investigated.
Ferraris, S., Maio, Ivano Adolfo, Savi, Patrizia   +2 more
core   +1 more source

Dielectric properties of deformed early potatoes

Research in Agricultural Engineering, 2008
The permittivity of potato tissue was studied during uniaxial compression of cylindrical specimens prepared from two early varieties. Both the real and the imaginary permitivity components were determined repeatedly during the loading and unloading tests.
J. Blahovec
doaj   +1 more source

CaCu3Ti4O12 ceramics from co-precipitation method: Dielectric properties of pellets and thick films [PDF]

, 2009
Dielectric properties of CaCu3Ti4O12 (CCTO)-based ceramics and thick films (e ∼50m) prepared from powders synthesized by a soft chemistry method (co-precipitation) are presented and discussed.
Barbier, Bertrand, Chartier, Thierry, Combettes, Céline, Dutarde, Emmanuel, Guillemet-Fritsch, Sophie, Lebey, Thierry, Rossignol, Fabrice, Rumeau, Axel   +7 more
core   +3 more sources

Electrical permittivity and resistivity time lapses of multiphase DNAPLs in a lab test [PDF]

, 2014
Dense Non-Aqueous Phase Liquids (DNAPLs) induce variation in electromagnetic characteristics of the ground e.g. electric permittivity and resistivity.
Orlando, Luciana, Renzi, Beatrice
core   +2 more sources

A Planar Millimeter-Wave Resonator-Array to Sense the Permittivity of COP Film with the 5G Handset Back-Cover

Sensors, 2021
In this paper, a new sensor is developed to estimate the dielectric constant of Cyclo Olefin Polymer (COP) film utilizable for 5G mobile phones’ multi-layered back-cover. It is featured by the electrical characterization of the thin layer of the COP film
Yejune Seo, Changhyeong Lee, Inyeol Moon, Koichro Ota, Ryomei Omote, Sungtek Kahng   +5 more
doaj   +1 more source