Results 41 to 50 of about 135,374 (222)

Modeling of electrical transport in Zinc Oxide varistors [PDF]

Advances in Radio Science, 2014
The electrical transport in zinc oxide (ZnO) varistors is analyzed using microstructural material modeling. The fully three dimensional current distribution is computed by means of a nonlinear equivalent circuit model representing the assembly of current
K. Bavelis, E. Gjonaj, T. Weiland
doaj   +1 more source

Microstructure and electrical properties of Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics

, 2011
Y(NO3)3·6H2O-doped ZnO-Bi2O3-based varistor ceramics were prepared using a solid reaction route. The microstructure, electrical properties, degradation coefficient(DV), and dielectric characteristics of varistor ceramics were studied in this paper.
Xu, D.(frank@ujs.edu.cn), Dong Xu, Juan Yang, Yuan, Hongming, Yang, Juan, Hongming Yuan, Lin, Yuanhua, Yuanhua Lin, Xu, Dong, Cheng, Xiaonong, Xiaonong Cheng   +10 more
core   +1 more source

Microstructural evaluation of rare-earth-zinc oxide-based varistor ceramics

Materials Research, 2005
Zinc oxide varistors are nonlinear voltage dependent ceramic resistors used to suppress and limit transient voltage surges. The work reported in this paper involves the relationship between microstructural characteristics and the varistor performance of ...
José Geraldo de Melo Furtado, Luiz Antônio Saléh, Eduardo Torres Serra, Glória Suzana Gomes de Oliveira, Maria Cecília de Souza Nóbrega   +4 more
doaj   +1 more source

Power loss transition of stable ZnO varistor ceramics: Role of oxygen adsorption on the stability of interface states at the grain boundary

Journal of Advanced Ceramics, 2023
Highly stable ZnO varistor ceramics with steadily decreasing power loss have been put into applications in electrical and electronic systems for overvoltage protections, even with the absence of general understandings on their aging behaviors.
Zhuolin Cheng, Rou Li, Yiwei Long, Jianying Li, Shengtao Li, Kangning Wu   +5 more
doaj   +1 more source

A comparative study of thermal conductivity in ZnO- and SnO2-based varistor systems

, 2005
We performed a comparative study of electrical and thermal properties of ZnO- and SnO2-based varistor. The electrical properties of commercial ZnO-based varistor are equivalent to that found in SnO2-based varistor system.
Leite, E. R., Longo, Elson [UNESP], Longo, Elson, Bueno, Paulo Roberto, Bueno, Paulo Roberto [UNESP], Varela, José Arana [UNESP], Varela, José Arana, Barrado, C. M.   +7 more
core   +1 more source

Structural and electrical properties of ZnO and SiO doped ZnO powder for varistor application [PDF]

, 2019
Pure zinc oxide ( ZnO ) and silica (SiO ) doped ZnO nanopowders have been prepared using solid state method. SiO were doped into ZnO at different weight percentage 1 and 3 wt.%.
N. Yahya, R. Mohamed, M. F Malek, Yahya, Norihan, Malek, Mohd Firdaus, Khusaimi, Zuraida, Rusop, M., Osman, Nor Dalila Farhana, Mohd Yusoff,, Marmeezee, N. Osman, M. H. Mamat, Mamat, M. H., M. M. Yusoff, Mohamed, Ruziana, Ismail, Ahmad Syakirin, A. S. Ismail, Z. Khusaimi, M. Rusop   +17 more
core   +1 more source

Study on the Influence Mechanism of Side Surface Treatment Technology for ZnO Varistors

International Journal of Ceramic Engineering &Science, Volume 8, Issue 6, November 2026.
This study compares three ZnO varistor side treatments: insulating varnish, high‐resistance layer, and in situ repair. The in situ repair medium achieves superior pore filling and current distribution, raising 2‐ms surge withstand capability to 950 A, but reduces voltage gradient and increases leakage current.
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Fenglian Liu, Yue Yin, Pengfei Meng   +7 more
wiley   +1 more source

PENGARUH PENAMBAHAN CoO TERHADAP FAKTOR KENON LINEARAN DAN STRUKTUR MIKRO VARISTOR ZnO-Bi203

, 2005
PENGARUH PENAMBAHAN CoO TERHADAP FAKTOR KENON LINEARAN DAN STRUKTUR MIKRO VARISTOR ZnO-Bi203. Untuk mencari varistor yang efektif, studi pengaruh periambahan CoO terhadap karakteristik varistor ZnO-Bi203 telah dipelajari.
Sukirman, Engkir, Ariwahjoedi, Bambang, Prajitno, Djoko Hadi, Syarif, Dani Gustaman   +3 more
core   +1 more source

Nonlinear Conductive Materials for Adaptive Electric Overstress Control: Theory, Tailoring and Applications

High Voltage, Volume 11, Issue 5, Page 1482-1500, October 2026.
ABSTRACT Artificial intelligence computing, renewable energy integration and transportation electrification are driving electrical and electronic equipment towards higher power densities, higher voltage ratings and greater miniaturisation. Under these trends, insulation systems have become a key bottleneck for reliability and compactness.
Zhiwen Huang, Xianrui Jiang, Gang Sun, Juntong Zong, Ya Sun, Jun Hu, Jinliang He   +6 more
wiley   +1 more source

The Influence of Dy2O3 doping on the Electrical Properties of ZnO-Based Varistor [PDF]

, 2015
ZnO is a ceramic material which tends to intrinsically form as an n-type semiconductor material. In this paper, the effect of Dy2O3 doping on the grain size and the electrical properties of ZnO-based varistor has been investigated, where we studied the I-
Mahdi, Abdul Hameed.R., Ibraheem, Aysar. J., Khadim, Adil I.   +2 more
core   +1 more source