Results 41 to 50 of about 133,121 (127)

Effect of soda lime silica glass doping on ZnO varistor ceramics: dry milling method

open access: yesJournal of Asian Ceramic Societies, 2020
There is a lack of reports where dry milling methods have been used in the preparation of varistor based ceramics. Dry milling methods have been demonstrated to be able to produce fine and homogeneous sample powders.
Nur Quratul Aini Ismail   +2 more
doaj   +1 more source

Influence of Fine Crystal Percentage on the Electrical Properties of ZnO Ceramic-Based Varistors

open access: yesCrystals, 2020
Herein, the effect of nanocrystal percentage in bulk-ZnO varistors was studied. The structure of ZnO nanocrystals was examined using X-ray diffraction (XRD) and field-emission scanning electron microscopy (FE-SEM).
Abdullah Aljaafari, Ahmed Sedky
doaj   +1 more source

External Leakage Current Separation to Determine Arrester Condition Due to Contamination

open access: yesJurnal Nasional Teknik Elektro, 2023
Leakage current measurements can be used to determine the aging condition of the ZnO arrester. The leakage current that occurs in the arrester is divided into two, namely external and internal leakage currents.
Novizon Novizon   +4 more
doaj   +1 more source

Ultra‐Rapid Blacklight Sintering for ZnO‐Based Varistors With Optimized Functional Properties

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT The increasing demand for energy‐efficient optoelectronic systems has intensified interest in high‐performance ceramic varistors, which are critical components in surge protection applications. In this study, ZnO‐based varistors were fabricated using a novel blacklight sintering (BLS) technique, which employs high‐powered blue light, and were ...
Ahmad Sayyadi‐Shahraki   +4 more
wiley   +1 more source

Effect of Composite Additives on ZnO Varistor Ceramics

open access: yes, 2011
ZnO-based varistor ceramics were prepared by sintering ZnO powders with minor additives that were synthesized by standard ball milling, high energy ball milling for 10 h, and pyrogenic decomposition of nitrate.
Guo Quan Qi   +3 more
core   +1 more source

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

open access: yesAdvanced Functional Materials, Volume 36, Issue 14, 16 February 2026.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere   +5 more
wiley   +1 more source

Comportamento reológico de suspensões aquosas de um sistema varistor à base de ZnO Rheological properties of aqueous suspensions of a ZnO varistor system

open access: yesCerâmica, 2007
O comportamento reológico de suspensões cerâmicas apresenta forte dependência do pH, quantidade de dispersante e concentração de sólidos. Quando dispersões são compostas por vários óxidos diferentes, o comportamento reológico pode ser afetado de maneira ...
S. L. M. Brito, D. Gouvêa, R. Ganzella
doaj   +1 more source

Factors Influence on Electrophysical Parameters of the Composite Varistors

open access: yesNauka ta progres transportu, 2023
Purpose. Evaluation influence structural state polymer phase on the response voltage and coefficient nonlinearity of a multilayer varistor based on zinc oxide. Methodology. Zinc oxide consisted of 97% zinc oxide and 3% total oxides of Bi2O3, Co3O4, MnO2,
Sh. M. Ahadzade   +2 more
doaj   +1 more source

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

open access: yesHigh Voltage, Volume 11, Issue 1, Page 100-142, February 2026.
ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li   +6 more
wiley   +1 more source

Simulation‐Based Material Design for HVDC Cable Accessories

open access: yesHigh Voltage, Volume 11, Issue 1, Page 25-36, February 2026.
ABSTRACT The worldwide increasing demand for electricity, coupled with the need for more reliable infrastructures and more interconnected networks, has put forward high voltage direct current (HVDC) technologies for energy transmissions. Questions still arise as regards synthetic insulation for cable systems and accessories, as it remains one of the ...
Thi Thu Nga Vu   +2 more
wiley   +1 more source

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