Results 71 to 80 of about 133,121 (127)

IMPACT OF RARE EARTH OXIDES ON THE STRUCTURE AND ELECTRICAL PROPERTIES OF ZnO-Bi2O3−BASED VARISTOR CERAMICS: A COMPARATIVE ANALYSIS OF Y2O3 AND CeO2

open access: yesTạp chí Khoa học
Zinc oxide (ZnO)-based varistor ceramics, incorporating varying amounts of Y2O3/CeO2, were fabricated through a twostep solid-state reaction method involving pre-calcination and subsequent sintering processes.
Nguyen Trung Huy, Nguyen Van Trang, Cao Thi Hong, Nguyen Thi Xuyen, Vo Thi Kieu Anh, Nguyen Quang Duong, Nguyen Tuan Anh, Le Dang Quang, Do Quang Tham*
doaj   +1 more source

ZnO-Bi2O3-based varistor ceramics prepared by direct high-energy ball milling of the dopants

open access: yes, 2011
The microstructure and electrical properties of ZnO-Bi2O3-based varistor ceramics prepared by direct high-energy ball milling of the dopants were studied.
Ye, Xiao   +4 more
core  

Boundary breakdown time of ZnO varistors under nanosecond pulse current

open access: yesAIP Advances, 2019
Conductive properties of zinc oxide (ZnO) varistor ceramics depend on the boundary barrier structure. By using the photoconductivity switches (PCSS) technology, the boundary breakdown characteristics of ZnO varistors for nanosecond electric pulse ...
Guangyong Xie, Mengyuan Wu, Wei Shi
doaj   +1 more source

Thermal behaviour analysis in a porcelain-housed ZnO surge arrester by computer simulations and thermography

open access: yesHigh Voltage, 2019
In this article, an analysis of heat transfer in a porcelain-housed ZnO surge arrester is presented. Due to the fact that ZnO-based surge arresters are key components for protection and reliability of electrical systems, it is necessary to seek ...
Arthur F. Andrade   +5 more
doaj   +1 more source

Pengaruh Penambahan Coo terhadap Faktor Kenon Linearan dan Struktur Mikro Varistor Zno-bi203

open access: yes, 2003
PENGARUH PENAMBAHAN CoO TERHADAP FAKTOR KENON LINEARAN DAN STRUKTUR MIKRO VARISTOR ZnO-Bi203. Untuk mencari varistor yang efektif, studi pengaruh periambahan CoO terhadap karakteristik varistor ZnO-Bi203 telah dipelajari.
Prajitno, D. H. (Djoko)   +3 more
core  

Zno varistor of low-temperature sintering ability

open access: yes, 2011
[[abstract]]Zinc oxide (ZnO) varistors containing vanadium oxide as the principal additive and one or more cobalt oxides and/or manganese oxides additives exhibit excellent nonlinear current-voltage characteristics.
Wu, Tai-Bor;Tsai, Jyh-Kuang
core  

Interfacial space charge between ZnO varistor ceramics and coatings

open access: yes, 2002
The interfacial space charge distribution between ZnO varistor ceramics and different collar coating materials was investigated using the Pulsed Electroacoustic Method (PEA) and Thermal Stimulated Current (TSC) methods. The experimental results show that

core   +1 more source

Methods of Determining Internal Parameters of Varistor Model [PDF]

open access: yes, 2008
ZnO varistors are semiconductor devices with highly nonlinear current-voltage characteristic and are widely used as devices for overvoltage protection. Varistor applications range from the use of small varistors to protect electronic components to large ...
Kostyla, P, Jaroszewski, M
core  

The Role of Polypyrrole in Electrical Properties of ZnO-Polymer Composite Varistors [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2017
Composite films on the base of ZnO with different weight percentages of polypyrrole have been prepared using the hot pressing method and their current-voltage characteristics have been studied. Results show that the films have nonlinear varistor behavior
Nasim Asaadi   +3 more
doaj  

KONTROLLÜKİMYASAL ÇÖKT{}RME YÖNTEMİ İLE ÜRETİLEN YÜKSEK VOL TAJ.LI Zn O \7 ARİSTÖRLERİN MİKROYAPISAL ÖZELI.�İKLERİNİN İNCELENMESİ

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2003
ZnO esaslı varistörl e r çok bileşenli yarı iletkenseraınil\lerdir. Çok bileşe nli ollt;sit seranıiklerinelektrik s el da,ıra nışları hen1 malzemeninmikroyapısına henı de ZnO t a n e sınırlarında oluianürünlerin yapısına bağlidır.
Özlem YÜKSEL   +2 more
doaj   +1 more source

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