Results 71 to 80 of about 122,447 (215)

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

open access: yesMaterials 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   +4 more
doaj   +1 more source

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

open access: yesInternational 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   +5 more
wiley   +1 more source

Research on the Electrical Properties and Microstructural Characteristics of ZnO Varistors Under Impulse Current

open access: yesCrystals
Zinc oxide (ZnO) varistors are a core component of surge arresters; their failure can directly affect the secure and reliable operation of power equipment.
Yong Wang   +5 more
doaj   +1 more source

Simulation of the Conductive Process of Nano ZnO Varistors Based on Animation Plane Form

open access: yesJournal of Chemistry, 2020
Among many nano materials and chemical materials, zinc oxide nanomaterials have attracted researchers’ interest because of their high efficiency, low cost, easy preparation, and variable morphology. The purpose of this study is to explore the fabrication
Xin Liu
doaj   +1 more source

Advancements in wearable heart sounds devices for the monitoring of cardiovascular diseases

open access: yesSmartMat, Volume 6, Issue 1, February 2025.
This article presents the recent advancements in wearable and flexible heart sound devices, focusing on their mechanics, types of sensors, flexible sensing materials, and prospective denoising techniques. Furthermore, the potential applications of heart sounds for the monitoring of cardiovascular diseases are reviewed as well along with its future ...
Rafi u Shan Ahmad   +5 more
wiley   +1 more source

Research on influence of double energy absorptions on dynamic volt‐ampere characteristics of metal oxide varistors

open access: yesHigh Voltage, Volume 10, Issue 1, Page 78-87, February 2025.
Abstract Metal oxide varistors (MOVs) are extensively employed in DC circuit breakers (DCCBs) to suppress overvoltage, dissipate energy and build up voltage after interruption. Despite their widespread use, the performance of MOVs under short‐time, double energy absorption conditions is not well understood, posing a challenge to their application in ...
Chen Long   +5 more
wiley   +1 more source

Effect of B2O3 doping on the Microstructure and Electrical Properties of ZnO-based Varistors

open access: yes, 2008
B2O3 doped ZnO-Bi2O3-Sb2O3-based varistors were fabricated by conventional solid state reaction method. The structure and electrical properties were investigated by XRD, SEM and electrical measurements.
Cui P, Duan L, Liu FH, Li YL, Xu GJ
core  

Taguchi‐optimized spark plasma‐sintered nanostructured ZnO varistors with exceptional nonlinearity and energy‐absorption performance

open access: yesResults in Materials
This study presents a comprehensive investigation of advanced nanostructured ZnO-based varistors fabricated through Spark Plasma Sintering (SPS) and optimized via the Taguchi method.
Arash Vaghef-Koodehi
doaj   +1 more source

Bio‐Plausible Multimodal Learning with Emerging Neuromorphic Devices

open access: yesAdvanced Science, Volume 11, Issue 45, December 4, 2024.
Multimodal neuromorphic computing strives to achieve enhanced biologically plausible multimodal learning with low complexity and high energy‐efficiency. This review provides a comprehensive overview of bio‐plausible multimodal learning with emerging neuromorphic devices, specifically focusing on multimodal neuromorphic computing and their capabilities ...
Haonan Sun   +7 more
wiley   +1 more source

Nanostructured constituents of ZnO-based varistors prepared by mechanical attrition

open access: yes, 1994
Nanostructured powders, with crystallite size of ZnO, spinel and γ-Bi2O3 phases below 100 nm, were obtained by the mechanical attrition of ZnO varistor powders prepared by method of directed synthesis of the constituent phases.
Branković, Zorica   +4 more
core   +1 more source

Home - About - Disclaimer - Privacy