Results 51 to 60 of about 133,121 (127)

Study on Microstructure and Electrical Properties of ZnO Varistor Ceramics

, 2011
To obtain ZnO varistors with high voltage gradient, ZnO varistors were fabricated by traditional ceramic sintering technique, which were sintered from 1135 to 1155 °C, the microstructure and properties of varistors were characterized by SEM, X-rays ...
Chang Qi Xia, Mo He, Qi Bin Liu
core   +1 more source

Technical Progress, Challenges and Prospects of HVDC Cable Accessories: A Review With Chinese Practice Insights

High Voltage, Volume 11, Issue 1, Page 1-24, February 2026.
ABSTRACT With the development of deep‐sea wind power and large‐scale onshore clean energy, the global demand for higher voltage level DC cable power transmission technology has become increasingly urgent. This paper systematically reviews the technical advancements in high voltage direct current (HVDC) cable accessories, addressing design challenges of
Zongxi Liu, Benhong Ouyang, Kaiwen Huang, Yuli Wang, Jiankang Zhao, Peng Zhao   +5 more
wiley   +1 more source

Research on Mechanism of Improving Electrical Properties of ZnO Varistor Ceramics by Laser Shock Processing

, 2010
In order to improve electrical properties, annealed ZnO varistor ceramics have been treated by laser shock processing (LSP). Electrical parameters of the annealed ZnO varistor ceramics were measured by CJ1001 Varistor Tester.
Rui Fang Chen, Yin Qun Hua, Guang Ji, Zhen Zhen Sun   +3 more
core   +1 more source

Abnormal Expansion Along the Synthesis of Zinc Stannate: A Way for Porous Ceramics Without Addition of Pore Generators

Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.
The abnormal expansion associated with the simultaneous synthesis and sintering of Zn2SnO4 from ZnO and SnO2 is due to the reaction mechanism and correlated with the conversion. This phenomenon opens the way to manufacture porous ceramics without the addition of pore generators, simplifying the process, and especially the thermal treatment.
María José Orts, Eugeni Cañas, Valentín Pérez‐Herranz, Sergio Mestre   +3 more
wiley   +1 more source

Electron paramagnetic resonance study of ZnO varistor material

, 2014
Matsuoka-type zinc oxide (ZnO) varistor material was synthesized using a conventional solid-state reaction method. X-band electron paramagnetic resonance (EPR) data revealed that Mn ions substitute in the ZnO lattice with a 2+ paramagnetic state. Co ions
Zierep, Paul, Granzow, Torsten, Erdem, Emre, Weber, Stefan, Baraki, Raschid   +4 more
core   +1 more source

Stability of ZnO-Pr6o11-Cr2O3 varistor ceramics against electrical degradation [PDF]

, 2016
The vulnerability of varistor ceramics to electrical degradation during operation not only affects their nonlinear properties but also leads to shortening of device’s lifetime by increasing the risk of failures including melting, fire or even explosions.
Rahman, Md. Mahmudur, Zakaria, Azmi, Mohd Ghazali, Mohd Sabri, Hashim, Mansor, Wan Abdullah, Wan Rafizah   +4 more
core   +1 more source

Enhancement of non-ohmic properties of CoO DopeD ZnO varistor ceramics using Soda Lime Silica (SLS) glass [PDF]

, 2020
ZnO-SLS-CoO (ZSC) based varistor ceramics were prepared at a high sintering temperature of 1100 ºC via the conventional solid-state method. The effect of SLS glass on the electrical properties was studied at the different concentration of SLS glass ...
Ismail, Nur Quratul Aini, Sa'at, Nor Kamilah, Mohd Zaid, Mohd Hafiz   +2 more
core   +1 more source

Computational Model and Experimental Validation of the Influence of Grain‐Boundary Parameters on the Electrical Performance of Arrester Varistor

International Journal of Ceramic Engineering &Science, Volume 8, Issue 1, January 2026.
This paper presents a calculation model for the nonlinear characteristics of varistors based on a basic conductive mechanism, and it has been verified through experiments. The mechanism of the barrier's effect on electrical performance has been obtained.
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Pengfei Meng, Yue Yin, Jingke Guo   +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

Comparative Assessment of Lightning Overvoltages at Transformer and Hydrogenerator Terminals Under Nonideal Station‐Side Metal‐Oxide Arrester Conditions

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This study comparatively assesses lightning‐overvoltage propagation to the transformer high‐voltage terminal and hydrogenerator busbar of a hydropower plant under prescribed lightning‐current injection and selected nonideal conditions of a station‐side metal‐oxide arrester.
Jiachen Zhang, Bo Zhang, Wang Guo, Chenen Sun, Zeyu Zhao, Yuanyang Liu, Jichun Yi, Wei Li, Yanliang Qiu, Guanjun Zhang   +9 more
wiley   +1 more source