Results 151 to 160 of about 2,258 (200)

Tunable Electrical Properties of Cobalt-Doped Maghemite Nanoparticles for Advanced Resistive and Thermistor Applications. [PDF]

open access: yesNanomaterials (Basel)
Hjiri M   +6 more
europepmc   +1 more source

Degradation phenomena of ZnO varistors

Physica Status Solidi (a), 1981
The dc degradation behaviour of ZnO varistors as a function of the variables current, temperature, and time is investigated. The degradation rate is phenomenologically presented by an equation reflecting the observed aging behaviour in dependence on the influencing variables.
W. Moldenhauer   +4 more
openaire   +1 more source

Microchemistry of ZnO Varistors

Proceedings, annual meeting, Electron Microscopy Society of America, 1992
ZnO varistors are made by mixing semiconducting ZnO powder with powders of other metal oxides e.g. Bi2O3, Sb2O3, CoO, MnO2, NiO, Cr2O3, SiO2 etc., followed by conventional pressing and sintering. The non-linear I-V characteristics of ZnO varistors result from the unique properties that the grain boundaries acquire as a result of dopant distribution ...
K. K. Soni   +4 more
openaire   +1 more source

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