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ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases

Authorized Users Only
2007
Authors
Branković, Zorica
Branković, Goran
Bernik, Slavko
Žunić, Milan
Article (Published version)
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Abstract
The aim of this work was to reduce number of additives using new method of preparation, refered as "direct mixing of the constituent phases". The method is based on sintering of a mixture of constituent phases with the following compositions: ZnO phase uniformly doped with 0.1 mol% Mn2+ and 0.1 mol% Co2+, gamma-Bi2O3 stabilized with Mn2+ and spinel phase of composition Zn1.86Co0.46Sb0.67O4 or Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4. The varistors sintered at 1030 degrees C showed good electrical properties, with nonlinearity coefficient reaching 50 and low values of leakage current. To improve microstructure some powder mixtures were intensively milled and further processed on the same way as unmilled powder mixtures. Electrical and microstructural properties of milled and unmilled samples were compared.
Keywords:
ZnO / varistors / milling / grain boundaries / electrical properties
Source:
Journal of the European Ceramic Society, 2007, 27, 2-3, 1101-1104
Publisher:
  • Elsevier Sci Ltd, Oxford

DOI: 10.1016/j.jeurceramsoc.2006.05.040

ISSN: 0955-2219

WoS: 000243265100117

Scopus: 2-s2.0-33751001296
[ Google Scholar ]
13
10
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/185
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - JOUR
AU  - Branković, Zorica
AU  - Branković, Goran
AU  - Bernik, Slavko
AU  - Žunić, Milan
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/185
AB  - The aim of this work was to reduce number of additives using new method of preparation, refered as "direct mixing of the constituent phases". The method is based on sintering of a mixture of constituent phases with the following compositions: ZnO phase uniformly doped with 0.1 mol% Mn2+ and 0.1 mol% Co2+, gamma-Bi2O3 stabilized with Mn2+ and spinel phase of composition Zn1.86Co0.46Sb0.67O4 or Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4. The varistors sintered at 1030 degrees C showed good electrical properties, with nonlinearity coefficient reaching 50 and low values of leakage current. To improve microstructure some powder mixtures were intensively milled and further processed on the same way as unmilled powder mixtures. Electrical and microstructural properties of milled and unmilled samples were compared.
PB  - Elsevier Sci Ltd, Oxford
T2  - Journal of the European Ceramic Society
T1  - ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases
EP  - 1104
IS  - 2-3
SP  - 1101
VL  - 27
DO  - 10.1016/j.jeurceramsoc.2006.05.040
ER  - 
@article{
author = "Branković, Zorica and Branković, Goran and Bernik, Slavko and Žunić, Milan",
year = "2007",
abstract = "The aim of this work was to reduce number of additives using new method of preparation, refered as "direct mixing of the constituent phases". The method is based on sintering of a mixture of constituent phases with the following compositions: ZnO phase uniformly doped with 0.1 mol% Mn2+ and 0.1 mol% Co2+, gamma-Bi2O3 stabilized with Mn2+ and spinel phase of composition Zn1.86Co0.46Sb0.67O4 or Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4. The varistors sintered at 1030 degrees C showed good electrical properties, with nonlinearity coefficient reaching 50 and low values of leakage current. To improve microstructure some powder mixtures were intensively milled and further processed on the same way as unmilled powder mixtures. Electrical and microstructural properties of milled and unmilled samples were compared.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Journal of the European Ceramic Society",
title = "ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases",
pages = "1104-1101",
number = "2-3",
volume = "27",
doi = "10.1016/j.jeurceramsoc.2006.05.040"
}
Branković, Z., Branković, G., Bernik, S.,& Žunić, M.. (2007). ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases. in Journal of the European Ceramic Society
Elsevier Sci Ltd, Oxford., 27(2-3), 1101-1104.
https://doi.org/10.1016/j.jeurceramsoc.2006.05.040
Branković Z, Branković G, Bernik S, Žunić M. ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases. in Journal of the European Ceramic Society. 2007;27(2-3):1101-1104.
doi:10.1016/j.jeurceramsoc.2006.05.040 .
Branković, Zorica, Branković, Goran, Bernik, Slavko, Žunić, Milan, "ZnO varistors with reduced amount of additives prepared by direct mixing of constituent phases" in Journal of the European Ceramic Society, 27, no. 2-3 (2007):1101-1104,
https://doi.org/10.1016/j.jeurceramsoc.2006.05.040 . .

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