ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (similar to0.01 A/m(2)), were obtained by a method referred to as "direct mixing of constituent phases". The method is based on sintering of a mixture of the constituent phases with the following compositions: ZnO phase uniformly doped with Co2+ and Mn2+; intergranular phase: gamma -Bi2O3 stabilized with Mn2+ or Zn2+; spinel phase: Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4 AS proved, the obtained varistors are composed of the same phases as those introduced into the system. The influence of composition as well as milling and sintering parameters on the varistor characteristics were investigated. Some varistor powder mixtures were intensively milled before sintering. As a result, high density ceramics with higly homogeneous microstructure were obtained after sintering.
TY - JOUR
AU - Branković, Zorica
AU - Milošević, Olivera
AU - Poleti, Dejan
AU - Karanović, Ljiljana C.
AU - Uskoković, D
PY - 2000
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/55
AB - ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (similar to0.01 A/m(2)), were obtained by a method referred to as "direct mixing of constituent phases". The method is based on sintering of a mixture of the constituent phases with the following compositions: ZnO phase uniformly doped with Co2+ and Mn2+; intergranular phase: gamma -Bi2O3 stabilized with Mn2+ or Zn2+; spinel phase: Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4 AS proved, the obtained varistors are composed of the same phases as those introduced into the system. The influence of composition as well as milling and sintering parameters on the varistor characteristics were investigated. Some varistor powder mixtures were intensively milled before sintering. As a result, high density ceramics with higly homogeneous microstructure were obtained after sintering.
PB - Japan Inst Metals & Materials, Sendai
T2 - Materials Transactions Jim
T1 - ZnO varistors prepared by direct mixing of constituent phases
EP - 1231
IS - 9
SP - 1226
VL - 41
DO - 10.2320/matertrans1989.41.1226
ER -
@article{
author = "Branković, Zorica and Milošević, Olivera and Poleti, Dejan and Karanović, Ljiljana C. and Uskoković, D",
year = "2000",
abstract = "ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (similar to0.01 A/m(2)), were obtained by a method referred to as "direct mixing of constituent phases". The method is based on sintering of a mixture of the constituent phases with the following compositions: ZnO phase uniformly doped with Co2+ and Mn2+; intergranular phase: gamma -Bi2O3 stabilized with Mn2+ or Zn2+; spinel phase: Zn1.971Ni0.090Co0.030Cr0.247Mn0.090Sb0.545O4 AS proved, the obtained varistors are composed of the same phases as those introduced into the system. The influence of composition as well as milling and sintering parameters on the varistor characteristics were investigated. Some varistor powder mixtures were intensively milled before sintering. As a result, high density ceramics with higly homogeneous microstructure were obtained after sintering.",
publisher = "Japan Inst Metals & Materials, Sendai",
journal = "Materials Transactions Jim",
title = "ZnO varistors prepared by direct mixing of constituent phases",
pages = "1231-1226",
number = "9",
volume = "41",
doi = "10.2320/matertrans1989.41.1226"
}
Branković, Z., Milošević, O., Poleti, D., Karanović, L. C.,& Uskoković, D.. (2000). ZnO varistors prepared by direct mixing of constituent phases. in Materials Transactions Jim
Japan Inst Metals & Materials, Sendai., 41(9), 1226-1231.
https://doi.org/10.2320/matertrans1989.41.1226
Branković Z, Milošević O, Poleti D, Karanović LC, Uskoković D. ZnO varistors prepared by direct mixing of constituent phases. in Materials Transactions Jim. 2000;41(9):1226-1231.
doi:10.2320/matertrans1989.41.1226 .
Branković, Zorica, Milošević, Olivera, Poleti, Dejan, Karanović, Ljiljana C., Uskoković, D, "ZnO varistors prepared by direct mixing of constituent phases" in Materials Transactions Jim, 41, no. 9 (2000):1226-1231,
https://doi.org/10.2320/matertrans1989.41.1226 . .
