Results 61 to 70 of about 2,053 (224)

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  

Nonlinear electrical properties of grain boundaries in oxygen ion conductors - Modeling the varistor behavior [PDF]

, 2005
We report on numerical simulations of the grain-boundary varistor behavior recently observed in Y2O3-doped CeO2 of high purity. The aim of this study is to disclose the nature of the nonlinear electrical properties of the grain boundaries in oxygen ion ...
Guo, X., Meyer, R., Waser, R.
core   +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  

Spectroscopy of the dielectric parameters of ZnO-based varistors

Surface Engineering and Applied Electrochemistry, 2012
The spectroscopy of the dielectric parameters of ZnO-based varistors is studied. An analysis of the data on the temperature and frequency dependence of the electric conductivity shows that variable-range hopping conductivity between the localized states near the Fermi level can be implemented in the varistors.
Kharirchi, F., Gasanli, S.M., Azizova, S.M., Khalilov, D.D.   +3 more
openaire   +2 more sources

Determining the effect of bismuth oxide on the microstructure and electrical response of cold‐sintered ZnO varistors

Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.
Abstract Microstructure homogeneity and grain size reduction are needed to ensure the current uniformity and reliability required in metal oxide varistors for DC circuit breakers. Cold sintering (CS)–a low‐temperature digestive liquid and high‐pressure densification process–has previously shown reduced grain growth, but it is not clear how the lower ...
Kayla Y. Chuong, Yang Liu, Thomas Forbes, Marshall B. Frye, Lukas Graber, Lauren M. Garten   +5 more
wiley   +1 more source

Research of Controlled Components on PZT-ZnO-Based Multifunctional Electronic Ceramics with Piezoelectricity and Varistor Behaviors

Ceramics
To synergistically integrate piezoelectric and varistor functionalities in a single material, PNN-PZT piezoelectric powder (abbreviated as P) and ZnO-based varistor powder (abbreviated as Z) were utilized to fabricate PZT-ZnO composite ceramics (denoted ...
Yuying Wang, Chaoyang Liu, Yanping Tan, Songsong Zhang, Ting Zhu, Deyi Zheng, Xingchao Tian   +6 more
doaj   +1 more source

Analysis of the failure mechanism of ZnO varistors influenced by high‐resistance media based on multi‐field coupling simulation

High Voltage, Volume 10, Issue 3, Page 673-679, June 2025.
Abstract This study focuses on the distribution of high‐resistance media (pores and spinels) within ZnO $\text{ZnO}$ varistors and explores the mechanical and electrical failure mechanisms of varistors under different pulse actions. Micro‐CT technology revealed that the proportion of high‐resistance media in the edge area is much higher than in the ...
Pengfei Meng, Yue Yin, Lei Wang, Jingke Guo, Zerui Li, Kai Zhou, Guangya Zhu, Yefei Xu   +7 more
wiley   +1 more source

Estudo da adsorção de dispersante à base de poliacrilato em um sistema varistor comercial: caracterização físico-química Study of polyacrylate adsorption in a commercial varistor system: characterization of the physical-chemistry properties

Cerâmica, 2005
Um dos grandes desafios no processamento cerâmico é a obtenção de dispersões de partículas estáveis e homogêneas contendo materiais com diferentes características físicas e químicas, como densidade, área de superfície específica, distribuição de tamanho ...
S. L. M. Brito, D. Gouvêa, R. Ganzella
doaj   +1 more source

The effect of Sm2O3 on the sintering and grain growth behaviors of SnO2-based ceramics [PDF]

, 2019
The effect of samarium oxide was examined on the sintering, microstructure, and grain growth behaviors of (Co, Nb)-doped SnO2-based ceramics prepared by co-precipitation method.
Bastami, Hajieh, Poelman, Dirk, Smet, Philippe, Taheri-Nassaj, Ehsan   +3 more
core   +1 more source

Calculation model by Voronoi network and verification of zinc oxide varistor considering conduction mechanism

International Journal of Ceramic Engineering &Science, Volume 7, Issue 2, March 2025.
In this paper, a method to improve the performance of varistor with the help of computational model was presented and verified by experiments. Abstract This paper investigates the impact of the microstructure of zinc oxide varistor ceramics on their electrical properties.
Xiao Lei, Xin Ning, Peng Liu, Pengfei Meng, Yue Yin, Jingke Guo   +5 more
wiley   +1 more source