Results 1 to 10 of about 226 (167)

Dielectric Loss and Electrical Conductivity Behaviors of Epoxy Composites Containing Semiconducting ZnO Varistor Particles [PDF]

open access: yesMolecules, 2022
Polymer nanodielectrics render a great material platform for exhibiting the intrinsic nature of incorporated particles, particularly semiconducting types, and their interfaces with the polymer matrix.
Li Lei   +4 more
doaj   +2 more sources

Microstructure and Nonohmic Properties of SnO2-Ta2O5-ZnO System Doped with ZrO2 [PDF]

open access: yesThe Scientific World Journal, 2014
The microstructure and nonohmic properties of SnO2-Ta2O5-ZnO varistor system doped with different amounts of ZrO2 (0–2.0 mol%) were investigated. The proposed samples were sintered at 1400°C for 2 h with conventional ceramic processing method.
Xiuli Fu   +3 more
doaj   +2 more sources

Novel Ultrahigh-Performance ZnO-Based Varistor Ceramics [PDF]

open access: yesACS Applied Materials & Interfaces, 2021
Tian Tian   +2 more
exaly   +2 more sources

Effect of Ni2O3 Doping on the Electrical Properties and Intrinsic Defect Concentration of ZnO Varistor Ceramics [PDF]

open access: yesE3S Web of Conferences, 2020
With the development of high voltage transmission, there is an urgent need to develop ZnO varistor ceramics with high anti-aging properties. The key is to manipulate the intrinsic defect concentration of ZnO varistor ceramics precisely.
Guo Qirui   +4 more
doaj   +1 more source

Effect of sintering time on microstructure and electrical properties of varistor ceramics ZnO-CoO-SLS glass [PDF]

open access: yesScience of Sintering, 2021
The influence of sintering time on the microstructure and electrical properties of ZnO-CoO-SLS (soda lime silica) glass varistor based ceramics has been investigated.
Ismail Nur Quratul Aini   +2 more
doaj   +1 more source

Percolation effects in dc degradation of ZnO varistors [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
For quantitative estimation of the degree of electrical disorder (electrical inhomogeneity) in ZnO varistor ceramics caused by a variation in the barrier height at different grain boundaries in a sample, the comparison of threshold electric fields ...
A. S. Tonkoshkur   +2 more
doaj   +1 more source

Micro-Degradation Characteristics and Mechanism of ZnO Varistors under Multi-Pulse Lightning Strike

open access: yesEnergies, 2020
In view of the problem that ZnO varistors are often subjected to thermal breakdown and deterioration due to lightning strikes in low-voltage power distribution systems, this article used a 8/20 µs multi-pulse surge current with a pulse time interval of ...
Chunlong Zhang   +4 more
doaj   +1 more source

Sensitivity of electrical behaviours of ZnO nanoparticle–Bi2O3–Mn2O3 varistor system to various La2O3 doping compositions

open access: yesJournal of Taibah University for Science, 2022
The effects of La2O3 on the behaviours of ZnO nanoparticle–Bi2O3–Mn2O3 varistors were determined. The discs with various La2O3 compositions (0.0–3.0 mol%) were prepared via traditional ceramic techniques and their characteristics were investigated.
Rabab Khalid Sendi
doaj   +1 more source

High‐performance ZnO varistor ceramics prepared by arc‐induced flash sintering with low energy consumption at room temperature

open access: yesHigh Voltage, 2022
The development of ultra‐high voltage transmission lines requires a ZnO arrester with excellent electrical response and high voltage gradient. Compared with conventional preparation methods, flash sintering allows fast production of novel high ...
Angxuan Wu   +8 more
doaj   +1 more source

Advances in the synthesis of ZnO nanomaterials for varistor devices [PDF]

open access: yesJournal of Materials Chemistry C, 2013
ZnO based varistors are widely used for overvoltage protection in many electrical and electronic circuits, at voltages ranging from a few to over a million volts. By careful control of the microstructure, through nano-structuring by chemical routes, it should be possible to produce varistors with high breakdown voltage (Vc), as this is proportional to ...
Pillai, Suresh   +3 more
openaire   +3 more sources

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