Results 81 to 90 of about 968 (215)

Textured ZnO-Based varistors via templated grain growth

, 2004
8th Conference of the European-Ceramic-Society -- JUN 29-JUL 03, 2003 -- Istanbul, TURKEYWOS: 000223059700072Textured ZnO-based varistors were produced by using templated grain growth technique (TGG). Rod-like ZnO particles which used as templates in TGG
Doğan, A, Özer, IO, Suvacı, Ender
core   +1 more source

Microstructural and nonohmic properties of ZnO.Pr6O11 CoO polycrystalline system

Materials Research, 2010
The microstructure and electrical properties of varistors composed of (95-x) ZnO + x Pr6O11 + 5 CoO (ZPC), (x = 0.1, 0.5 and 1.0) and sintered at 1300 and 1350 °C, were investigated. According to X-ray diffraction, several phases (ZnO, Pr2O3 and Pr2CoO4)
Miguel Angel Ramírez, José Francisco Fernández, José de Frutos, Paulo Roberto Bueno, Elson Longo, José Arana Varela   +5 more
doaj   +1 more source

The Simulation of Failure Modes on ZnO Varistors

IEEJ Transactions on Power and Energy, 2008
There are three main failure modes of ZnO varistors; thermal runaway, puncture and cracking. It is important from the operational point of view for user of ZnO surge arresters to know the fundamental mechanisms of these failure modes. I led many equations on these failures and simulated failure modes.
openaire   +1 more source

Influence of processing parameters on microstructure and electrical properties of ZnO-based varistor ceramics

Discover Electronics
ZnO-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, Muddassar Hussain, Muhammad Ali, Syed Ahmad Ali   +3 more
doaj   +1 more source

Desenvolvimento de varistores à base de SnO2 para aplicação em redes de alta tensão Development of SnO2-based varistors for high voltage application

Cerâmica, 2006
Varistores à base de SnO2 foram preparados pelo processo convencional de mistura de óxidos. As amostras foram sinterizadas a 1250 °C por 2 h. Os difratogramas obtidos por difração de raios X e as análises por microscopia eletrônica de varredura ...
M. M. Oliveira, J. H. G. Rangel, V. C. de Sousa, E. R. Leite, E. Longo, P. R. Bueno, J. A. Varela   +6 more
doaj   +1 more source

Effect of Ball Milling of Composite Additives on the Microstructure and Electrical Properties of ZnO Varistors

, 2011
ZnO varistors were synthesized with ZnO powders and intensity milled composite additives as raw materials. The effect of milling time of the composite additives on the grain boundary phase distribution as well as the electrical properties was ...
Guo Quan Qi, Jian Feng Zhu, Hai Bo Yang, Fen Wang   +3 more
core   +1 more source

Development of a reusuable atomic oxygen sensor using oxide thick films

, 2009
The aim of this project was to develop a thick film sensor made of zinc oxide that would accurately respond to various fluxes of atomic oxygen (AO), allowing it to be regenerated after saturation.
Valer, Juan Carlos
core  

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

Processing parameters for ZnO-based thick film varistors obtained by screen printing

Boletín de la Sociedad Española de Cerámica y Vidrio, 2006
Thick film varistors based on the ZnO-Bi2O3-Sb2O3 system have been prepared by screen printing on dense alumina substrates. Different processing parameters like the paste viscosity, burn out and sintering cycles, green and sintered thickness, have been ...
de la Rubia, M. A., Peiteado, M., Fernández, J. F., Caballero, A. C., de Frutos, J., Holc, J., Drnovsek, S., Kuscer, D., Macek, S., Kosec, M.   +9 more
doaj  

Full-Lifecycle Deterioration Characteristics and Remaining Life Prediction of ZnO Varistors Based on PSO-SVR and iForest

Energies
To address three core deficiencies of the existing research on ZnO varistors (incomplete full-lifecycle datasets, insufficient characterization robustness due to the lack of multi-parameter complementarity, and disconnected remaining life prediction and ...
Zhiheng Zhu, Hongyang Xiao, Zhengwang Xu, Jixin Yang, Zhou Huang   +4 more
doaj   +1 more source