Results 91 to 100 of about 2,053 (224)
Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends [PDF]
, 2017 Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts.
Alan J. Watson +8 more
core +1 more source
Photopyroelectric spectrum of MNO2 Doped Bi2O3 - TiO2 - ZnO ceramic combination [PDF]
, 2008 Photopyroelectric spectroscopy is used to study the energy band-gap of the ceramic (ZnO 0.25 Bi2O3 +0.25 TiO2 + x MnO2), x = 0 - 1.3 mol%, sintered at isothermal temperature 1190 and 1270°C for 2 hours in air.
Hashim, Mansor +4 more
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The Role of Polypyrrole in Electrical Properties of ZnO-Polymer Composite Varistors [PDF]
Iranian 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
Sakarya 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
Discover ElectronicsZnO-based varistors are widely used in electrical equipment for surge protection. This research explores the influence of sintering parameters—such as sintering temperature, ramp rate and soaking time—on microstructure development and V-I characteristics
Muhammad Hassan +3 more
doaj +1 more source
Comparative study of two synthesis methods to obtain ZnO-Pr2O3-CoO ceramic powders [PDF]
, 2004 [ES] Los polvos cerámicos de ZnO - Pr2O3 - CoO son utilizados como materia prima para la fabricación de varistores. Estos dispositivos presentan una característica corriente - voltaje altamente no lineal que permiten su uso como conmutadores de estado ...
Caballero Cuesta, Amador +4 more
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Características microestructurales de varistores del sistema ZnO-BaO-P2O5
Boletín de la Sociedad Española de Cerámica y Vidrio, 1999 Ceramic materials based on the system ZnO-BaO show a great potential for varistor applications. However, the BaO rich phase located at the grain boundaries shows high solubility in water which causes severe damage of the materials.
Fernández, J. F. +5 more
doaj
Sample preparation and varistor physical properties measurement of ZnO+0.01Sb2O3 [PDF]
Songklanakarin Journal of Science and Technology (SJST), 2003 The disc-shape ZnO+0.01Sb2O3 samples were prepared by standard ceramic techniques. The sample indicates white colour and was characterized by XRD. The prepared sample is varistor which shows breakdown field strength of 87.18 V/mm and non-linearity ...
Juggaroen, N, Casol, W., Panmatarith, T.
doaj
The Effects of Electrical Degradation on the Microstructure of Metal Oxide Varistor [PDF]
, 2001 In this paper, the findings from systematic experiments with the purpose to determine the degradation effect of single and multiple current pulses on the microstructure of the Metal Oxide (MO) varistor are described. Six distribution class varistors from
Mardira, K. P. +2 more
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Detection mechanism in highly sensitive ZnO nanowires network gas sensors
, 2019 Metal-oxide nanowires are showing a great interest in the domain of gas sensing due to their large response even at a low temperature, enabling low-power gas sensors.
Caicedo, Nohora +4 more
core +1 more source