Results 1 to 10 of about 399,051 (306)

Characterization of Dielectric Properties of Graphene and Graphite Using the Resonant Cavity in 5G Test Band [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2023
This paper presents a study about the dielectric constant εr, dielectric loss tangent tan g(δ) and effective electrical conductivity σe of graphene, graphite and graphene-bakelite combination using the resonant cavity method.
Vinicius M. Pereira   +4 more
doaj   +1 more source

Impact of oxygen-containing carbonyl and ether groups on dielectric properties of poly(oxa)norbornene cyclic olefins

open access: yesJournal of Advanced Dielectrics, 2023
Flexible dielectric polymers that can withstand high electric field and simultaneously have high dielectric constant are desired for high-density energy storage.
Chao Wu   +5 more
doaj   +1 more source

Study on the dielectric properties and dielectric constant model of laterite

open access: yesFrontiers in Earth Science, 2022
The soil dielectric constant model reflects the relationship between the volumetric water content and the dielectric constant. The ground penetrating radar (GPR) could quickly, precisely and non-destructively obtain the water state of the soil layers.
Xingqian Xu   +5 more
doaj   +1 more source

Studing Some Effective Parameter on The Dielectric Properties of Composite Materials Containing of Un Saturated Polyester Resin [PDF]

open access: yesEngineering and Technology Journal, 2015
The studyof dielectric constant (єr) and the dielectric strength (Ebr) of the composite materials consist of the unsaturated polyester resin reinforced with aluminum powder and unsaturated polyester resin reinforced with aluminum powder and the copper ...
Anaam Wadi Watan, Suad Hammed Aleabi
doaj   +1 more source

Calculation Principle and Test Method of Main Insulation Dielectric Constant of Stator Bar

open access: yesJournal of Harbin University of Science and Technology, 2023
The main insulation of the stator bar is subjected to the combined action of multiple stresses during operation, and its dielectric properties have an important impact on ensuring the safe operation of the generator.
CHEN Liying, LAN Wenbao
doaj   +1 more source

All-organic dielectric-percolative three-component composite materials with high electromechanical response [PDF]

open access: yes, 2004
By combining the high-dielectric copper phthalocyanine oligomer (PolyCuPc) and conductive polyanline (PANI) within polyurethane (PU) matrix an all-organic three-component dielectric-percolative composite with high dielectric constant is demonstrated.
Bhattacharya, Kaushik   +3 more
core   +1 more source

Effects of Ion Solvation on the Miscibility of Binary Polymer Blends [PDF]

open access: yes, 2008
We study the effects of adding salt ions on the miscibility of a binary blend of polymers having different dielectric constants. The competition between the preference of the ions to be solvated by the component of the higher dielectric constant and the ...
Wang, Zhen-Gang
core   +1 more source

Dielectric behavior of CaCu3Ti4O12: Poly Vinyl Chloride ceramic polymer composites at different temperature and frequencies

open access: yesModern Electronic Materials, 2016
In this study, the efforts have been made to obtain relatively high dielectric constant polymer-ceramic composite by incorporating the giant dielectric constant material, calcium copper titanate (CCTO) in a PVC polymer matrix. We have prepared composites
Ajay Pratap Singh, Y.P. Singh
doaj   +1 more source

ELABORATION AND DIELECTRIC CHARACTERIZATION OF A DOPED FERROELECTRIC MATERIAL TYPE PZT

open access: yesJournal of Fundamental and Applied Sciences, 2015
The main objective of this work is based on the synthesis and dielectric characterization of a new material in ceramic PZT with a perovskite structure ABO3. We are interested to study the Quaternary system (doping in site A and site B) of general formula:
M. Abba   +5 more
doaj   +1 more source

A GPR-Based Test Study on the Influencing Factors of the Dielectric Constant of Cement-Stabilized Macadam Bases

open access: yesAdvances in Materials Science and Engineering, 2022
Dielectric constant is an important parameter for the nondestructive test of cement stabilized macadam base (CSMB) on road by ground-penetrating radar (GPR).
Xue Han, Shifei Cao, Hanhui He
doaj   +1 more source

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