Results 21 to 30 of about 904 (223)

Simulation of the Conductive Process of Nano ZnO Varistors Based on Animation Plane Form

open access: yesJournal of Chemistry, 2020
Among many nano materials and chemical materials, zinc oxide nanomaterials have attracted researchers’ interest because of their high efficiency, low cost, easy preparation, and variable morphology. The purpose of this study is to explore the fabrication
Xin Liu
doaj   +1 more source

Microstructure and Degree of Degradation of ZnO Varistors in Surge Arresters Due to Operation [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
The paper presents the test results for the microstructure of ZnO varistors comprising high voltage gapless surge arresters. The tests were performed on varistors produced in different periods and by various manufacturers.
P. Papliński   +3 more
doaj   +1 more source

Structural and electrical properties of ZnO and SiO doped ZnO powder for varistor application [PDF]

open access: yes, 2019
Pure zinc oxide ( ZnO ) and silica (SiO ) doped ZnO nanopowders have been prepared using solid state method. SiO were doped into ZnO at different weight percentage 1 and 3 wt.%.
N. Yahya   +17 more
core   +1 more source

Bio-Plausible Multimodal Learning with Emerging Neuromorphic Devices. [PDF]

open access: yesAdv Sci (Weinh)
Multimodal neuromorphic computing strives to achieve enhanced biologically plausible multimodal learning with low complexity and high energy‐efficiency. This review provides a comprehensive overview of bio‐plausible multimodal learning with emerging neuromorphic devices, specifically focusing on multimodal neuromorphic computing and their capabilities ...
Sun H   +7 more
europepmc   +2 more sources

Sintesis de ceramicos de ZnO dopados con praseodimio y cobalto

open access: yesMaterials Research, 2003
Zinc oxide, ZnO, is a very interesting compound in science and electronic ceramics technology. ZnO ceramics containing some additives were reported to show varistor action with excellent nonlinearity in current - voltage characteristics.
Ana Milena Cruz   +3 more
doaj   +1 more source

Varistores à base de SnO2: estado da arte e perspectivas [PDF]

open access: yesCerâmica, 2000
Este trabalho descreve a história dos varistores à base de SnO2. Nele são apresentadas as principais características deste novo sistema varistor e uma comparação direta com o sistema tradicional à base de ZnO, estabelecendo as vantagens e desvantagens. O
P. R. Bueno   +5 more
doaj   +1 more source

Percolation effects in the capacitive properties of metal-oxide varistors in the range of high voltage [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
C–V characteristics of ZnO-based ceramic structures used in manufacturing high-voltage and low-voltage varistors of different chemical compositions and manufacturing techniques have been investigated. A correlation between the intensity of electric field
A. S. Tonkoshkur   +2 more
doaj   +1 more source

Ultrahigh voltage-gradient ZnO-based varistor ceramics via hybrid cold sintering process/spark plasma sintering and post-annealing process

open access: yesJournal of Advanced Ceramics
A high voltage gradient (Vg) of ZnO-based varistor ceramics is critical for realizing miniaturized and lightweight overvoltage protection devices. However, improving Vg of ZnO-based varistor ceramics through conventional high-temperature sintering ...
Shenglin Kang   +8 more
doaj   +1 more source

Modeling of electrical transport in Zinc Oxide varistors [PDF]

open access: yesAdvances in Radio Science, 2014
The electrical transport in zinc oxide (ZnO) varistors is analyzed using microstructural material modeling. The fully three dimensional current distribution is computed by means of a nonlinear equivalent circuit model representing the assembly of current
K. Bavelis, E. Gjonaj, T. Weiland
doaj   +1 more source

Electronic properties of SnO2-based ceramics with double function of varistor and humidity sensor

open access: yes, 2009
This is the post-print version of the article. The official published version can be obtained from the link below - Copyright @ 2010 AD-Tech.Tin dioxide based varistor ceramics SnO2-Co3O4-Nb2O5-Cr2O3-xCuO (x=0; 0.05; 0.1 and 0.5) were made and their ...
Bulpett, R   +9 more
core   +1 more source

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