Results 31 to 40 of about 133,121 (127)
Highly stable ZnO varistor ceramics with steadily decreasing power loss have been put into applications in electrical and electronic systems for overvoltage protections, even with the absence of general understandings on their aging behaviors.
Zhuolin Cheng +5 more
doaj +1 more source
A comparative study of thermal conductivity in ZnO- and SnO2-based varistor systems
We performed a comparative study of electrical and thermal properties of ZnO- and SnO2-based varistor. The electrical properties of commercial ZnO-based varistor are equivalent to that found in SnO2-based varistor system.
Leite, E. R. +7 more
core +1 more source
PENGARUH PENAMBAHAN CoO TERHADAP FAKTOR KENON LINEARAN DAN STRUKTUR MIKRO VARISTOR ZnO-Bi203
PENGARUH PENAMBAHAN CoO TERHADAP FAKTOR KENON LINEARAN DAN STRUKTUR MIKRO VARISTOR ZnO-Bi203. Untuk mencari varistor yang efektif, studi pengaruh periambahan CoO terhadap karakteristik varistor ZnO-Bi203 telah dipelajari.
Sukirman, Engkir +3 more
core +1 more source
Structural and electrical properties of ZnO and SiO doped ZnO powder for varistor application [PDF]
Pure zinc oxide ( ZnO ) and silica (SiO ) doped ZnO nanopowders have been prepared using solid state method. SiO were doped into ZnO at different weight percentage 1 and 3 wt.%.
N. Yahya +17 more
core +1 more source
ABSTRACT Artificial intelligence computing, renewable energy integration and transportation electrification are driving electrical and electronic equipment towards higher power densities, higher voltage ratings and greater miniaturisation. Under these trends, insulation systems have become a key bottleneck for reliability and compactness.
Zhiwen Huang +6 more
wiley +1 more source
Comparative Studies on Degradation of Varistors Subjected to Operation in Surge Arresters and Surge Arrester Counters [PDF]
The paper presents results of investigation of microstructure and micro-hardness for material of ZnO varistors applied to 110 kV surge arrester and surge arrester counter.
P. Papliński +6 more
doaj +1 more source
ABSTRACT The traction power supply system of high‐speed railways is exposed to complex lightning environments over the long term. Overvoltage generated by direct lightning or induced lightning can propagate along the overhead contact line, traction substations, onboard high‐voltage system and mobile grounding system, thereby threatening equipment ...
Guangning Wu +9 more
wiley +1 more source
The Influence of Dy2O3 doping on the Electrical Properties of ZnO-Based Varistor [PDF]
ZnO is a ceramic material which tends to intrinsically form as an n-type semiconductor material. In this paper, the effect of Dy2O3 doping on the grain size and the electrical properties of ZnO-based varistor has been investigated, where we studied the I-
Mahdi, Abdul Hameed.R. +2 more
core +1 more source
Abstract Electromagnetic sounding coupled with experimental measurements of electrical conductivity (EC) can provide valuable constraints on the thermochemical state of Earth's lower mantle. Here, we report a new set of experimentally determined EC values of pyrolite, a candidate composition of the lower mantle, between 25 and 80 GPa at room ...
Charlotte Trubowitz +10 more
wiley +1 more source
Strain‐Induced Redistribution of Point Defects in ZnO Nanoparticles
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

