Electrical properties of mechanically activated zinc oxide
Abstract
Microstructural properties of a commercial zinc oxide powder were modified by mechanical activation in a high-energy vibro-mill. The obtained powders were dry pressed and sintered at 1100 degrees C for 2 h. The electrical properties of grain boundaries of obtained ZnO ceramics were studied using an ac impedance analyzer. For that purpose, the ac electrical response was measured in the temperature range from 23 to 240 degrees C in order to determine the resistance and capacitance of grain boundaries. The activation energies of conduction were obtained using an Arrhenius equation. Donor densities were calculated from Mott-Schottky measurements. The influence of microstructure, types and concentrations of defects on electrical properties was discussed.
Keywords:
zinc oxide / mechanical activation / electrical properties / ceramicsSource:
Science of Sintering, 2006, 38, 2, 131-138Publisher:
- Međunarodni Institut za nauku o sinterovanju, Beograd
DOI: 10.2298/SOS0602131V
ISSN: 0350-820X
WoS: 000241312100004
Scopus: 2-s2.0-58149300095
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Institution/Community
Institut za multidisciplinarna istraživanjaTY - JOUR AU - Vojisavljević, Katarina AU - Žunić, Milan AU - Branković, Goran AU - Srećković, Tatjana PY - 2006 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/155 AB - Microstructural properties of a commercial zinc oxide powder were modified by mechanical activation in a high-energy vibro-mill. The obtained powders were dry pressed and sintered at 1100 degrees C for 2 h. The electrical properties of grain boundaries of obtained ZnO ceramics were studied using an ac impedance analyzer. For that purpose, the ac electrical response was measured in the temperature range from 23 to 240 degrees C in order to determine the resistance and capacitance of grain boundaries. The activation energies of conduction were obtained using an Arrhenius equation. Donor densities were calculated from Mott-Schottky measurements. The influence of microstructure, types and concentrations of defects on electrical properties was discussed. PB - Međunarodni Institut za nauku o sinterovanju, Beograd T2 - Science of Sintering T1 - Electrical properties of mechanically activated zinc oxide EP - 138 IS - 2 SP - 131 VL - 38 DO - 10.2298/SOS0602131V ER -
@article{ author = "Vojisavljević, Katarina and Žunić, Milan and Branković, Goran and Srećković, Tatjana", year = "2006", abstract = "Microstructural properties of a commercial zinc oxide powder were modified by mechanical activation in a high-energy vibro-mill. The obtained powders were dry pressed and sintered at 1100 degrees C for 2 h. The electrical properties of grain boundaries of obtained ZnO ceramics were studied using an ac impedance analyzer. For that purpose, the ac electrical response was measured in the temperature range from 23 to 240 degrees C in order to determine the resistance and capacitance of grain boundaries. The activation energies of conduction were obtained using an Arrhenius equation. Donor densities were calculated from Mott-Schottky measurements. The influence of microstructure, types and concentrations of defects on electrical properties was discussed.", publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd", journal = "Science of Sintering", title = "Electrical properties of mechanically activated zinc oxide", pages = "138-131", number = "2", volume = "38", doi = "10.2298/SOS0602131V" }
Vojisavljević, K., Žunić, M., Branković, G.,& Srećković, T.. (2006). Electrical properties of mechanically activated zinc oxide. in Science of Sintering Međunarodni Institut za nauku o sinterovanju, Beograd., 38(2), 131-138. https://doi.org/10.2298/SOS0602131V
Vojisavljević K, Žunić M, Branković G, Srećković T. Electrical properties of mechanically activated zinc oxide. in Science of Sintering. 2006;38(2):131-138. doi:10.2298/SOS0602131V .
Vojisavljević, Katarina, Žunić, Milan, Branković, Goran, Srećković, Tatjana, "Electrical properties of mechanically activated zinc oxide" in Science of Sintering, 38, no. 2 (2006):131-138, https://doi.org/10.2298/SOS0602131V . .