Results 31 to 40 of about 457 (219)
International Journal of Applied Ceramic Technology, Volume 23, Issue 4, August 2026.ABSTRACT This study examines the impact of aging on the electrical and structural properties of positive temperature coefficient of resistance (PTCR) ceramics. The presented study introduces a correlative scanning electron microscopy (SEM)/conductive atomic force microscopy (C‐AFM) approach enabling repeated, site‐specific characterization of ...
Kryštof Koller +4 more
wiley +1 more source
dv/dt Dependence in metal oxide varistors
Electronics Letters, 1986 A dv/dt dependence has been observed in metal oxide varis-tors during impulse testing. A lossy dielectric model which provides a qualitative explanation of this behaviour can also be used to account for current overshoot.
de Cogan, D., Leesen, M.
openaire +2 more sources
Strain‐Induced Redistribution of Point Defects in ZnO Nanoparticles
Small Science, Volume 6, Issue 3, March 2026.Powder compaction generates local strain effects in ZnO nanoparticles. This alters the abundance of intrinsic point defects and impacts the semiconductor's electronic structure. Such changes were analyzed by a combination of spectroscopy and density functional theory calculations and emphasize the importance of strain effects in the design and ...
Korbinian Aicher +4 more
wiley +1 more source
Ultra‐Rapid Blacklight Sintering for ZnO‐Based Varistors With Optimized Functional Properties
Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.ABSTRACT The increasing demand for energy‐efficient optoelectronic systems has intensified interest in high‐performance ceramic varistors, which are critical components in surge protection applications. In this study, ZnO‐based varistors were fabricated using a novel blacklight sintering (BLS) technique, which employs high‐powered blue light, and were ...
Ahmad Sayyadi‐Shahraki +4 more
wiley +1 more source
Temperature monitoring of metal oxide surge arresters [PDF]
, 2013 Varistor overtemperature above the ambient is an important state parameter of metal oxide surge arresters. The temperature monitoring using passive SAW sensors enables realisation of a surge counter function, an energy monitor, monitoring of electrical ...
Hinrichsen, V., Chrzan, K L
core +1 more source
Development of a Low-Energy Mobile Current Waveform Impulse Generator for Application in Low Voltage Surge Arresters [PDF]
Brazilian Archives of Biology and TechnologySurge arresters are at the forefront of protection against voltage surges. The loss of the protective effect of surge arresters imposes accidents and unplanned shutdowns on the power system.
Tiago Goncalves Zacarias +9 more
doaj +1 more source
Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study
Advanced Functional Materials, Volume 36, Issue 14, 16 February 2026.This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere +5 more
wiley +1 more source
Investigation of Limitations in Passive Voltage Clamping-Based Solid-State DC Circuit Breakers
IEEE Open Journal of Power Electronics, 2022 This paper investigates limitations of passive voltage clamping based dc solid-state circuit breakers (SSCBs). There are two major contributions of this paper.
Shuyan Zhao +4 more
doaj +1 more source
Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges
High Voltage, Volume 11, Issue 1, Page 100-142, February 2026.ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li +6 more
wiley +1 more source
Electro-Thermal Modeling of Metal-Oxide Arrester under Power Frequency Applied Voltages
Energies, 2018 Metal-oxide arresters (MOAs) are used to absorb the electrical energy resulting from overvoltages in power systems. However, temperature rises caused by the absorbed energy can lead to the electrothermal failure of MOAs.
Jiazheng Lu +3 more
doaj +1 more source