Results 11 to 20 of about 2,265,679 (371)

Electrical breakdown of small gaps in vacuum [PDF]

open access: greenIEEE Transactions on Dielectrics and Electrical Insulation, 1997
The comparison of the characteristics of an electric arc breakdown in vacuum between two silver or silver-nickel alloy convex electrodes, enabled us to show experimentally that the process initiating discharge in vacuum is the electronic emission at the micrometer scale.
Zouache, Nourédine, Lefort, André
openaire   +4 more sources

Thermal Dissipation and Variability in Electrical Breakdown of Carbon Nanotube Devices [PDF]

open access: green, 2010
We study high-field electrical breakdown and heat dissipation from carbon nanotube (CNT) devices on SiO2 substrates. The thermal "footprint" of a CNT caused by van der Waals interactions with the substrate is revealed through molecular dynamics (MD ...
Albert Liao   +7 more
core   +2 more sources

The detection and localization of stator bar with electrical breakdown of insulation [PDF]

open access: diamondZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2018
While in operation, the generators are exposed to various electrical, thermal, mechanical and chemical stresses, but also to pollutants that shorten their lifetime.
Klasnić Ilija   +2 more
doaj   +2 more sources

Electrical tree modelling in dielectric polymers using a phase-field regularized cohesive zone model

open access: yesMaterials & Design, 2023
Electrical treeing is a leading cause to the eventual breakdown of dielectric polymers under high voltages. This paper presents a simulation scheme developed based on the phase-field regularized cohesive zone model (PF-CZM) for electrical tree modelling.
Qi Wang   +7 more
doaj   +1 more source

Flexible Strain Sensor with Tunable Sensitivity via Microscale Electrical Breakdown in Graphene/Polyimide Thin Films.

open access: yesACS Applied Materials and Interfaces, 2020
Carbon-based piezoresistive nanomaterials are widely used for the fabrication of flexible sensors. Although our previous work demonstrated that an electrical breakdown (EBD) process can endow a graphene/polyimide (G/PI) composite with piezoresistivity ...
Yonggang Jiang   +5 more
semanticscholar   +1 more source

Mitigation of electrical treeing at high temperature in nano‐SiO2 doped epoxy resin

open access: yesHigh Voltage, 2023
In this work, electrical tree inception and ageing experiments were conducted to investigate the initiation, growth characteristics and structural characteristics of electrical trees of nano‐SiO2 doped epoxy resin at different temperatures.
Yuanyuan Li   +4 more
doaj   +1 more source

Study Of Measurements Leakage Current In Oil Transformer

open access: yesDiyala Journal of Engineering Sciences, 2020
The oil transformer is used in (H.V ) ment's to avoid the electrical breakdown , and heat effect ,so that the oil using as an insulation  and cooling in electrical  instruments to prevent the failure in the transformer. In our research  the measurements
Hassan J. Mohammed
doaj   +1 more source

Electrical response and pore structure evolution affected by cyclical plasma breakdown

open access: yesMeitan xuebao, 2023
Artificial improvement of coal seam permeability is the key to solve the low gas drainage efficiency and prevent gas dynamic disaster. Plasma based on physical discharge is one of the effective means of coal seam antireflection. However, previous studies
Xiangliang ZHANG   +3 more
doaj   +1 more source

Numerical simulation study of rock breaking mechanism by high voltage electric pulse

open access: yes矿业科学学报, 2023
High-voltage electric pulse(HVEP)drilling has become a new and efficient rock breaking method, which is also the research focus in the field of drilling speed increase.
Liu Weiji   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy