Results 21 to 30 of about 2,036,081 (240)

Effects of Temperature and Mechanical Stresses on the Dielectric Breakdown Strength of GF /EP Composites

open access: yesJournal of Harbin University of Science and Technology, 2018
To research the effects of temperature and mechanical stresses on the dielectric breakdown strength ( DBS) of Glass Fiber /Epoxy ( GF /EP) composites,the AC breakdown test has been carried out on the GF /EP composites under different temperatures ...
LIU Shu-mei, AO Ming, LI Zhong-hua
doaj   +1 more source

Study of Enhancing Energy Storage Density of Polypropylene Film Capacitors by Modified BaTiO3 Nano-fillers [PDF]

open access: yesDianli jianshe
[Objective] Polypropylene (PP) film capacitors are widely used in critical power equipment due to their excellent characteristics such as low loss and high voltage endurance. However, their low dielectric constant limits performance enhancement. [Methods]
LEI Tianxiang, XU Ying, ZHAO Zheng, SU Ran, WU Fangjie, HAO Zhiyuan, ZHAO Yuqi
doaj   +1 more source

Predicting Wood Strength using Dielectric Parameters

open access: yesBioResources, 2015
There are various methods for nondestructive imaging of the internal structure of wood. A microwave nondestructive method based on the dielectric properties of a medium is an area of great interest for predicting wood strength in the worldwide wood ...
Hamiyet Şahin Kol, İlker Yalçın
doaj   +1 more source

Employment of probability-based multi-response optimization in high voltage thermofluids [PDF]

open access: yesVojnotehnički Glasnik, 2022
Introduction/purpose: Researchers of fluids for high voltage engineering application always experience problems when selecting and recommending specific fluids suitable for high voltage application.
Joseph Chukwuka Ofodu   +1 more
doaj   +1 more source

Reliability Assessment of Statistical Distributions for Analyzing Dielectric Breakdown Strength of Polypropylene

open access: yesApplied Sciences, 2023
Various statistical distributions, such as Weibull, log-normal, and exponential functions, are frequently employed to interpret the dielectric breakdown (BD) strength data of insulating materials, including cross-linked polyethylene, low-density ...
Keon-Hee Park   +3 more
doaj   +1 more source

Morphological and Electrical Properties of Nanocellulose Compounds and Its Application on Capacitor Assembly

open access: yesInternational Journal of Polymer Science, 2020
The rise for innovation in the electrical industry is strongly driven by development of new materials. Features of new materials are changing design paradigms for engineers. In this paper, the electrical properties of films of cellulose nanocrystals were
José Alfredo Hernández-Flores   +7 more
doaj   +1 more source

Study the Effect of Volume Fraction of Mica With Different Particle Size on the Mechanical and Electrical Properties for Unsaturated Polyester Composites [PDF]

open access: yesEngineering and Technology Journal, 2012
This study was carried out to investigate the effect of adding mica (5, 10, 15, 20, 25 % vf) with variable particle size (35, 57, 70μm) on the mechanical and electrical properties of the unsaturated polyester composites.
Rafah A.Nasif
doaj   +1 more source

Dielectric breakdown properties of CF3I-N2 mixtures containing a small amount of SF6

open access: yesAIP Advances, 2019
CF3I-N2 mixtures have garnered much attention as potential SF6-substitutes due to their excellent dielectric strengths, and the dielectric strength of SF6-N2 mixtures has a good synergy effect. This paper attempts to propose an approach of adding a small
Hu Zhao, Yunkun Deng, Zengyao Tian
doaj   +1 more source

Dielectric elastomers, with very high dielectric permittivity, based on silicone and ionic interpenetrating networks [PDF]

open access: yesRSC Advances, 2015
Dielectric elastomers (DEs), which represent an emerging actuator and generator technology, admittedly have many favourable properties, but their high driving voltages are one of the main obstacles to commercialisation.
Liyun Yu   +3 more
doaj   +1 more source

Dielectric Characterization of Chinese Standard Concrete for Compressive Strength Evaluation

open access: yesApplied Sciences, 2017
Dielectric characterization of concrete is essential for the wireless structural health monitoring (SHM) of concrete structures. Guo Biao (GB) concrete refers to the concrete mixed and cast in accordance with the Chinese standard. Currently, China is the
Kwok L. Chung   +5 more
doaj   +1 more source

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