Results 101 to 110 of about 2,070 (218)

Estudio de la región rica en Bi2O3 en el sistema binario ZnO-Bi2O3

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2004
Ceramic materials based in the ZnO- Bi2O3 system have their principal application as varistors. The binary system ZnO-Bi2O3 is specially relevant to the formation of the microstructure responsable of the varistor behaviour.
Caballero, A. C.   +3 more
doaj  

Effect of MnO2${ ext{MnO}}_{2}$ doping on AC aging characteristics of varistor in arrester

open access: yesInternational Journal of Ceramic Engineering & Science
As the core component of lightning arrester, the performance of ZnO varistor directly affects the protection level of lightning arrester. Under the action of long‐term AC voltage, the varistors are prone to AC aging, which leads to the deterioration of ...
Zhengzheng Fu   +8 more
doaj   +1 more source

Donor and acceptor doping of zinc oxide varistors

open access: yes
ZnO-based varistors containing 0-10000 ppm Ga were prepared by the mixed oxide route. Disc-shaped samples were sintered in air at 1030\ub0C for 2 h. All products were of high density (>94% theoretical).
Freer R, Gilbert I
core   +5 more sources

Influence of Y–Bi–Co oxide doping on electrical performance of ZnO varistors based on simulation analysis

open access: yesInternational Journal of Ceramic Engineering & Science
ZnO varistors doped with Y2O3, Bi2O3, and Co2O3 were analyzed for electrical performance, microstructure, phase composition, and elemental distribution using electrical performance testing, scanning electron microscopy, X‐ray diffraction, and energy ...
Zhengzheng Fu   +7 more
doaj   +1 more source

Analysis of the failure mechanism of ZnO varistors influenced by high‐resistance media based on multi‐field coupling simulation

open access: yesHigh Voltage
This study focuses on the distribution of high‐resistance media (pores and spinels) within ZnO varistors and explores the mechanical and electrical failure mechanisms of varistors under different pulse actions.
Pengfei Meng   +7 more
doaj   +1 more source

Cold-Sintered ZnO Ceramic Composites Co-Doped with Polytetrafluoroethylene and Oxides. [PDF]

open access: yesMolecules, 2023
Xiao Y   +7 more
europepmc   +1 more source

Application of infrared thermography to non-contact testing of varistors [PDF]

open access: yes, 2013
Testing of varistors using thermography was carried out in order to assess their protective properties against possible overvoltage phenomena in the form of high-level voltage surges.
Galla, S., Konczakowska, A.
core  

Zinc oxide varistors made from powders prepared by wet chemical route

open access: yes, 2001
Powders used to produce zinc oxide ceramic varistors were prepared, by wet chemical route. SEM and XRD were used to characterize the powder properties and the microstructure of the varistors.
Ji, Y. Z.   +3 more
core  

A Hardware System for Synchronous Processing of Multiple Marine Dynamics MEMS Sensors. [PDF]

open access: yesMicromachines (Basel), 2022
Jing J   +7 more
europepmc   +1 more source

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