Results 71 to 80 of about 2,040 (221)

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  

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

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

Optical and Thermal Characterization of Zinc Oxide-Based Ceramic Using Pyroelectric and Photopyroelectric Techniques [PDF]

, 2009
The advantage of wide electrical band-gap of zinc oxide (ZnO) semiconductor has been used in many applications particularly as varistors, which are ceramic devices with highly non-linear current-voltage characteristics. For ZnO-based varistor system, one
Mohd Shapee, Sabrina
core  

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

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

Effect of foreign impurity and growth temperatures on hexagonal structure and fundamental properties of ZnO nanorods

Microscopy Research and Technique, Volume 87, Issue 11, Page 2687-2700, November 2024.
This study primarily deals with the fundamental aspects of material science and structural, morphological, transport charge carriers, electron transfer kinetics, reactivity, stability, optical and electrical properties. This study develops a strong methodology between impurity (Gd and Ni) nanoparticles in ZnO crystal system and the performance and ...
T. Seydioglu, S. Kurnaz, E. Aşıkuzun Tokeşer, G. Yildirim, O. Ozturk   +4 more
wiley   +1 more source

Detection of failures in HV surge arrester using chaos pattern with deep learning neural network

IET Science, Measurement &Technology, Volume 18, Issue 9, Page 603-615, November 2024.
This paper proposes a fault diagnosis method for HV surge arresters based on the chaotic system and CNN. Compared to AlexNet, HOG+BPNN, HOG+SVM, HOG+DT, and HOG+KNN detection methods, the accuracy of the method proposed in this paper is 97%. Abstract As a protective component of HV equipment, the primary function of a surge arrester is to mitigate the ...
Chun‐Chun Hung, Meng‐Hui Wang, Shiue‐Der Lu, Cheng‐Chien Kuo   +3 more
wiley   +1 more source

Studi Aplikasi Keramik Znbico Sebagai Termistor Ntc [PDF]

, 2006
STUDY ON THE APPLICA TION OF ZnBiCo CERAMICS AS NTC THERMISTORS. A study onthe application ofZnO-Bi203-CoO (ZnBiCo) ceramicsfor NTC thermistors had been carried out. The aim ofthisstudywas tofind alternative NTCthermistors.
Henny, H. (Henny), Suhandi, A. (Andi), Syarif, D. G. (Dani)   +2 more
core  

IMPACT OF RARE EARTH OXIDES ON THE STRUCTURE AND ELECTRICAL PROPERTIES OF ZnO-Bi2O3−BASED VARISTOR CERAMICS: A COMPARATIVE ANALYSIS OF Y2O3 AND CeO2

Tạp chí Khoa học
Zinc oxide (ZnO)-based varistor ceramics, incorporating varying amounts of Y2O3/CeO2, were fabricated through a twostep solid-state reaction method involving pre-calcination and subsequent sintering processes.
Nguyen Trung Huy, Nguyen Van Trang, Cao Thi Hong, Nguyen Thi Xuyen, Vo Thi Kieu Anh, Nguyen Quang Duong, Nguyen Tuan Anh, Le Dang Quang, Do Quang Tham*
doaj   +1 more source