Results 51 to 60 of about 2,235 (252)
Flexural performance of textile fine grained mortar containing risk husk ash as a partial cement replacement in reinforced concrete beams [PDF]
, 2018 External strengthening of RC beam become a popular method to reduce deterioration. Due to highest demanding on external strengthening, a new innovation was introduced called as textile fine grained mortar (TFGM).
Mohammad, Noor Shuhada
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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 +3 more
wiley +1 more source
The Effects of Electrical Degradation on the Microstructure of Metal Oxide Varistor [PDF]
, 2001 In this paper, the findings from systematic experiments with the purpose to determine the degradation effect of single and multiple current pulses on the microstructure of the Metal Oxide (MO) varistor are described. Six distribution class varistors from
Mardira, K. P. +2 more
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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 +7 more
wiley +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
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Semiconductor devices in solid-state/hybrid circuit breakers: current status and future trends [PDF]
, 2017 Circuit breakers (CBs) are the main protection devices for both alternating current (AC) and direct current (DC) power systems, ranging from tens of watts up to megawatts.
Alan J. Watson +8 more
core +1 more source
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 +5 more
wiley +1 more source
High VoltageThe submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen +7 more
doaj +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
Studies of in-service and laboratory failures of metal-oxide distribution surge arresters [PDF]
, 2003 We describe the findings from tests and inspections of arresters withdrawn from service, the results of laboratory studies with multipulse lightning currents and high temporary over-voltages, and comparisons of in-service and laboratory failure modes. We
Darveniza, M., Saha, T. K., Wright, S.
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