Results 71 to 80 of about 2,041 (224)

Hierarchical Growth of ZnO Particles by a Hydrothermal Route [PDF]

, 2014
The crystallization of ZnO microrods by hydrothermal treatment of a suspension formed from reaction of zinc acetate and sodium hydroxide has been examined using scanning and transmission electron microscopy.
Ahsanulhaq, Alivisatos, Baruah, Bitenc, Bitenc, Coasne, Distaso, Elen, Feng, Gao, Hamedani, Hui, Jiang, Kao, Kisailus, Kitture, Li, Liu, Liu, Luo, Ma, Morin, Onreabroy, Polsongkram, Suchanek, Tang, Wang, Wang, Wei, Wróbel, Yin, Zhang, Zhang, Zhang, Zhang, Zhang   +35 more
core   +1 more source

Research on influence of double energy absorptions on dynamic volt‐ampere characteristics of metal oxide varistors

High Voltage, Volume 10, Issue 1, Page 78-87, February 2025.
Abstract Metal oxide varistors (MOVs) are extensively employed in DC circuit breakers (DCCBs) to suppress overvoltage, dissipate energy and build up voltage after interruption. Despite their widespread use, the performance of MOVs under short‐time, double energy absorption conditions is not well understood, posing a challenge to their application in ...
Chen Long, Yifei Wu, Yi Wu, Mingzhe Rong, Yu Xiao, Yunfan Bai   +5 more
wiley   +1 more source

Simulação da difusão do zinco e do oxigênio, e análise da durabilidade de varistor de ZnO utilizando o planejamento fatorial

Cerâmica, 2000
A durabilidade do varistor de ZnO está relacionada com suas características elétricas, microestruturais, térmicas e com o fenômeno de transporte de massa nos contornos de grão durante o processo de operação do varistor.
Pariona M. M., Pianaro S. A.
doaj  

Effect of the sintering temperature on the electrical properties of Y–Al‐doped ZnO varistors

International Journal of Ceramic Engineering &Science, Volume 7, Issue 1, January 2025.
The effect mechanism of sintering temperature on the electrical properties of Y–Al‐doped ZnO varistors was revealed in this paper. It not only enriches the theoretical basis for the performance regulation of ZnO varistors but also provides a scientific basis for their application under higher requirements.
Lei Wang, Hang Zhang, Kexin Zhang, Yubo Shen, Limin Qu, Yue Yin, Pengfei Meng, Jingke Guo   +7 more
wiley   +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, Cruz, Ana Milena, Rodríguez Páez, Jorge E., Villegas, Marina, Ávila, H.   +4 more
core  

Using percolation to design ZnO composites with hBN modified grain boundaries to obtain varistor-like behavior

Open Ceramics
Conventional varistors rely on the formation of a Double Schottky Barrier within the intergranular region of ZnO via acceptor doping and a Bi2O3 phase. This work has been able to yield varistor-like behavior via cold sintered ZnO composites by placing 2D
Michael W. Mervosh, Sevag Momjian, Javier Mena-Garcia, Clive A. Randall   +3 more
doaj   +1 more source

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

International Journal of Ceramic Engineering &Science, Volume 7, Issue 1, January 2025.
Simulation methods were used to help reveal the effect mechanism of Y, Bi, and Co dopants on ZnO varistors. It provides an important theoretical basis for the development of high‐performance varistor. Abstract ZnO varistors doped with Y2O3${\rm Y}_2{\rm O}_3$, Bi2O3${\rm Bi}_2{\rm O}_3$, and Co2O3${\rm Co}_2{\rm O}_3$ were analyzed for electrical ...
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Yue Yin, Pengfei Meng, Jingke Guo   +7 more
wiley   +1 more source

Effect of sintering temperature on the photothermal spectrum of Bi2O3 - TiO2 - Co3O4 - ZnO ceramics [PDF]

, 2007
Photopyroelectric spectroscopy is used to study the band‐gap energy of the ceramic ZnO+0.5 Bi2O3+0.5 TiO2+0.4 Co3O4 (mol%), sintered at the isothermal temperature 1180 and 1210, 1240, 1270, 1300° C for 1 and 2 hours in air.
Hashim, Mansor, Mat Yunus, Wan Mahmood, Rizwan, Zahid, Shaari, Abdul Halim, Zakaria, Azmi   +4 more
core   +1 more source

Preparation of nitrogen doped zinc oxide nanoparticles and thin films by colloidal route and low temperature nitridation process [PDF]

, 2016
International audienceNitrogen doped zinc oxide (ZnO) nanoparticles have been synthesized using a colloidal route and low temperature nitridation process.
Cario, Laurent, Cheviré, François, Dierre, Benjamin, Faulques, Eric, Grasset, Fabien, Jiang, Tengfei, Jobic, Stéphane, Tessier, Franck, Valour, Arnaud   +8 more
core   +4 more sources

Precursor impurity‐mediated effect in the photocatalytic activity of precipitated zinc oxide

Journal of the American Ceramic Society, Volume 107, Issue 12, Page 8269-8280, December 2024.
Abstract Photocatalytic degradation of pollutants using nanoparticles presents a promising method globally. However, effectively harnessing light absorption while mitigating recombination and nanoparticle agglomeration remains challenging. Here, we explore the synthesis and characterization of zinc oxide nanoparticles for photocatalytic dye removal in ...
A. M. Ilyas, Jamal‐Deen Musah, Siu Wing Or, Ayodeji Oladiran Awodugba   +3 more
wiley   +1 more source