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Ultra-high breakdown field varistors prepared from individually synthesized nanoprecursors
dc.creator | Vuković, Marina | |
dc.creator | Branković, Goran | |
dc.creator | Marinković-Stanojević, Zorica | |
dc.creator | Poleti, Dejan | |
dc.creator | Branković, Zorica | |
dc.date.accessioned | 2022-04-05T14:56:36Z | |
dc.date.accessioned | 2023-02-03T12:50:10Z | |
dc.date.available | 2022-04-05T14:56:36Z | |
dc.date.available | 2023-02-03T12:50:10Z | |
dc.date.issued | 2015 | |
dc.identifier.issn | 0955-2219 | |
dc.identifier.uri | http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5808 | |
dc.description.abstract | Previously synthesized nanocrystalline ZnO doped with cobalt and manganese, Bi2O3 and Sb2O3 were the precursors for high voltage varistors preparation. Varistor ceramics were sintered at 750 degrees C, 770 degrees C or 900 degrees C for 1 h. An amount of 30 mass% of secondary phases and sintering temperature of 770 degrees C were found to be optimal for obtaining varistor with prominent properties. Achieved density was 97% of the theoretical value. Post-sintering phase composition included ZnO, gamma-Bi2O3 and pyrochlore-type with Zn2Bi3Sb3O14 nominal formula. Fine grained microstructure was accompanied with good phase distribution and excellent electrical characteristics: extraordinary high breakdown field of 3200 V mm(-1), high nonlinearity coefficients of 71 and 51 in 0.1-1 and 1-10 mA cm(-2) current density ranges, respectively, and low leakage current of 7.7 mu A cm(-2). | en |
dc.publisher | Elsevier Sci Ltd, Oxford | |
dc.relation | info:eu-repo/grantAgreement/MESTD/Integrated and Interdisciplinary Research (IIR or III)/45007/RS// | |
dc.rights | restrictedAccess | |
dc.source | Journal of the European Ceramic Society | |
dc.subject | Uniform microstructure | en |
dc.subject | Submicronic grain size | en |
dc.subject | Nanoprecursors | en |
dc.subject | High voltage ZnO varistors | en |
dc.subject | Electrical characteristics | en |
dc.title | Ultra-high breakdown field varistors prepared from individually synthesized nanoprecursors | en |
dc.type | article | |
dc.rights.license | ARR | |
dc.citation.epage | 1814 | |
dc.citation.issue | 6 | |
dc.citation.other | 35(6): 1807-1814 | |
dc.citation.rank | aM21 | |
dc.citation.spage | 1807 | |
dc.citation.volume | 35 | |
dc.identifier.doi | 10.1016/j.jeurceramsoc.2014.12.015 | |
dc.identifier.scopus | 2-s2.0-84922203804 | |
dc.identifier.wos | 000350191900014 | |
dc.type.version | publishedVersion |