Electrical properties of ZnO varistors prepared by direct mixing of constituent phases
Apstrakt
Varistor samples containing different amounts of constituent phases were prepared by direct mixing of constituent phases. Detailed electrical characterization was performed to explain the influence of minor phases (spinel and intergranular phases) on overall properties. Characterization included investigation of the non-linear coefficients (alpha), breakdown electric field (E-B), leakage currents (J(L)), grain boundary barrier hight (Phi(B)) and constant beta from current-voltage characteristics, as well as calculation of activation energies for conduction (E-A) from ac impedance spectroscopy in the temperature interval 30-410 degrees C. Varistors sintered at 1100 degrees C for 1 h showed pronounced differences in electrical properties depending on relative molar ratios of the phases. Results were discussed in the sense of possible reduction of the content of minor phases in ZnO varistors.
Ključne reči:
ZnO varistors / phases / microstructure / electrical propertiesIzvor:
Science of Sintering, 2006, 38, 2, 161-167Izdavač:
- Međunarodni Institut za nauku o sinterovanju, Beograd
DOI: 10.2298/SOS0602161Z
ISSN: 0350-820X
WoS: 000241312100008
Scopus: 2-s2.0-66149181685
Institucija/grupa
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Žunić, Milan AU - Branković, Zorica AU - Branković, Goran PY - 2006 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/152 AB - Varistor samples containing different amounts of constituent phases were prepared by direct mixing of constituent phases. Detailed electrical characterization was performed to explain the influence of minor phases (spinel and intergranular phases) on overall properties. Characterization included investigation of the non-linear coefficients (alpha), breakdown electric field (E-B), leakage currents (J(L)), grain boundary barrier hight (Phi(B)) and constant beta from current-voltage characteristics, as well as calculation of activation energies for conduction (E-A) from ac impedance spectroscopy in the temperature interval 30-410 degrees C. Varistors sintered at 1100 degrees C for 1 h showed pronounced differences in electrical properties depending on relative molar ratios of the phases. Results were discussed in the sense of possible reduction of the content of minor phases in ZnO varistors. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Electrical properties of ZnO varistors prepared by direct mixing of constituent phases EP - 167 IS - 2 SP - 161 VL - 38 DO - 10.2298/SOS0602161Z ER -
@article{ author = "Žunić, Milan and Branković, Zorica and Branković, Goran", year = "2006", abstract = "Varistor samples containing different amounts of constituent phases were prepared by direct mixing of constituent phases. Detailed electrical characterization was performed to explain the influence of minor phases (spinel and intergranular phases) on overall properties. Characterization included investigation of the non-linear coefficients (alpha), breakdown electric field (E-B), leakage currents (J(L)), grain boundary barrier hight (Phi(B)) and constant beta from current-voltage characteristics, as well as calculation of activation energies for conduction (E-A) from ac impedance spectroscopy in the temperature interval 30-410 degrees C. Varistors sintered at 1100 degrees C for 1 h showed pronounced differences in electrical properties depending on relative molar ratios of the phases. Results were discussed in the sense of possible reduction of the content of minor phases in ZnO varistors.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Electrical properties of ZnO varistors prepared by direct mixing of constituent phases", pages = "167-161", number = "2", volume = "38", doi = "10.2298/SOS0602161Z" }
Žunić, M., Branković, Z.,& Branković, G.. (2006). Electrical properties of ZnO varistors prepared by direct mixing of constituent phases. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 38(2), 161-167. https://doi.org/10.2298/SOS0602161Z
Žunić M, Branković Z, Branković G. Electrical properties of ZnO varistors prepared by direct mixing of constituent phases. in Science of Sintering. 2006;38(2):161-167. doi:10.2298/SOS0602161Z .
Žunić, Milan, Branković, Zorica, Branković, Goran, "Electrical properties of ZnO varistors prepared by direct mixing of constituent phases" in Science of Sintering, 38, no. 2 (2006):161-167, https://doi.org/10.2298/SOS0602161Z . .