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Stability of Zinc Oxide Varistors

open access: yes, 2014
Ceramic varistors based on ZnO, Bi2O3, Sb2O3, MnO and Co3O4 were prepared by the mixed oxide route. After milling the powders, disc shaped samples were pressed and sintered for 2 hours at temperatures in the range 950°C to 1250°C. Products were characterised in terms of phase development and microstructure by X-ray diffraction and scanning electron ...
openaire   +1 more source

Recent Advances of Varistor

open access: yesJournal of the Society of Materials Engineering for Resources of Japan, 2013
openaire   +2 more sources

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