Results 71 to 80 of about 968 (215)
Results in MaterialsThis 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
Precursor impurity‐mediated effect in the photocatalytic activity of precipitated zinc oxide
Journal of the American Ceramic Society, Volume 107, Issue 12, Page 8269-8280, December 2024.Abstract Photocatalytic degradation of pollutants using nanoparticles presents a promising method globally. However, effectively harnessing light absorption while mitigating recombination and nanoparticle agglomeration remains challenging. Here, we explore the synthesis and characterization of zinc oxide nanoparticles for photocatalytic dye removal in ...
A. M. Ilyas +3 more
wiley +1 more source
Quantitative Icts Measurement of Interface States at Grain Boundaries in ZnO Varistors
, 1997 Isothermal capacitance transient spectroscopy(ICTS) measurement is applied to ZnO:Pr varistors. A simple peak corresponding to the interface states at grain boundaries was obtained and the energy level of the interface states revealed to be monoenergetic
A. Tanaka, K. Mukae
core +1 more source
Microstructure–property relationship in textured ZnO-based varistors
Acta Materialia, 2010 The relationship between microstructure texturing and electrical characteristics of a ZnO-based varistor system was investigated in comparison with a varistor system having the same chemical composition but conventional microstructure. Highly textured ZnO-based varistors were produced via the templated grain growth (TGG) technique.
Ozer, I. Ozguer +2 more
openaire +2 more sources
Current localization, non-uniform heating, and failures of ZnO varistors [PDF]
, 1997 Metal oxide varistors have highly nonlinear electrical characteristics and are widely used as devices for over-voltage protection. Varistor applications range from the use of small varistors to protect delicate electronic components to the use of much ...
Bartkowiak, M., M. Bartkowiak
core +1 more source
, 2010 This work presents the most relevant aspects of the SnO2 based varistors technology and a comparative study of its non linear behavior in relation to ZnO (modified Matsuoka system) varistors.
Longo, E. [UNESP] +5 more
core
, 2003 A comparison experiment was designed and carried out to study the influence of electroless nickel plating on ZnO-based ceramic varistors. It was found that the influence was not caused by permeation of the plating solution; the influence was directly ...
Chan, H.L.W., Chen, W.P., Lu, S.G.
core +2 more sources
Comparative electrical behavior at low and high current of SnO(2)- and ZnO-based varistors [PDF]
, 2008 The complete I-V characteristics of SnO(2)-based varistors, particularly of the Pianaro system SCNCr consisting in 98.9%SnO(2)+1%CoO+0.05%Nb(2)O(5)+0.05%Cr(2)O(3), all in mol%, have been seldom reported in the literature.
LONGO, Elson +10 more
core +1 more source
Effect of Ba Addition on Electrical Characteristics of Bi-Based ZnO Varistors
, 2010 With the goal of fabricating low-breakdown-voltage varistors, the effect of adding Ba to ZnO varistors on the ZnO grain size was investigated. Grain growth of ZnO could be markedly promoted by adding both Ba and Bi.
Shinzo Yoshikado +4 more
core +1 more source
Influence Mechanism of Micro Grain-boundary Parameters to the Electrical Properties of ZnO Varistor
工程科学与技术ZnO varistors exhibit excellent nonlinear voltage–current characteristics and substantial energy capacity, enabling them to absorb impulse energy during power system overvoltages and thus protect the electrical equipment.
Pengfei MENG +6 more
doaj