Results 61 to 70 of about 432 (184)

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

International 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, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Yiping Jiang, Pengfei Meng, Jingke Guo, Yue Yin   +8 more
doaj   +1 more source

دراسة التركيب النسيجي لأجسام سيراميكية من أكسيدي الزنك و السيريوم ((Microstructure study of Ce-doped – Ceramics containing Zinc and Cerium oxides))

مجلة المختار للعلوم, 2004
للسيراميك استخدامات عديدة علي نطاق واسع  في مجال الكهرباء (الالكترونيات). ويتسع مدى هـذه  الاستخدامات  ليشمل الوقاية من خطر الجهد باستخدام الفارستور (Varistors) إلى مقاومات الفارستور (Varistors) ذات  درجة الحرارة الموجبة إلى العوازل السيراميكية ...
D. E. Ibrahim, Osama Desouky
doaj   +1 more source

Study of the Effect of WO3 and Bi2O3 on the Microstructure and Electrical Properties of A TiO2 based Varistor

Journal of Mechanical Engineering and Sciences, 2014
Titanium dioxide (TiO2) varistors doped with tungsten oxide (WO3) and bismuth oxide (Bi2O3) were investigated. The microstructure and electrical characterization were studied, where the effects of different concentrations of WO3 and a fixed amount of ...
Z. Kothandapani, S. Begum, I. Ahmad, I. R. Daud, S. Gholizadeh   +4 more
doaj   +1 more source

INVESTIGATION OF EXPLOSION SAFETY OF DC POLYMER SURGE ARRESTERS 3.3 KV FOR TRACTION NETWORK OF RAILWAY TRANSPORT

Electrical engineering & Electromechanics, 2019
In the testing laboratories of Ukraine, there is no high-voltage equipment of the necessary energy for testing surge arresters for explosion safety, which does not allow to estimate this indicator at the stage of development of prototypes.
Yu. N. Shumilov, V. I. Bondarenko
doaj   +1 more source

Influence of Sintering Temperature and ZrO₂ Dopants on the Microstructure and Electrical Properties of Zinc Oxide Varistors

IEEE Access, 2019
This paper investigated the effects of sintering temperature on the microstructure and electrical properties of ZrO2-doped zinc oxide (ZnO) varistor ceramics. The results show that, the additive ZrO2 exists as independent second phase between ZnO grains,
Pengkang Xie, Jianping Hu
doaj   +1 more source

Effects of Dopants and Processing Parameters on the Properties of ZnO-V₂O₅-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]

Materials (Basel), 2023
Lungu MV.
europepmc   +1 more source

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

Boletín 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., Fernández, J. F., Peiteado, M., de la Rubia, M. A.   +3 more
doaj  

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

International 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, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Yue Yin, Pengfei Meng, Jingke Guo   +7 more
doaj   +1 more source

A Bibliometric and Comprehensive Review on Condition Monitoring of Metal Oxide Surge Arresters. [PDF]

Sensors (Basel), 2023
Zacarias TG, Sant'Ana WC.
europepmc   +1 more source

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

Molecules, 2023
Xiao Y, Yang Y, Kang S, Li Y, Hou X, Ren C, Wang X, Zhao X.   +7 more
europepmc   +1 more source