Starting nanopowders of TiO2 (anatase 99.7%) and a-Fe2O3 (hematite) were mixed in the weight ratio 60:40 and 40:60. Green samples were sintered in the temperature range 750-1250oC in air. Structural, morphological and electrical studies were carried out using XRD, SEM and EDS analysis and Hall measurements with the aim of analyzing the influence of the starting nanopowder structure on the resulting sample composition, density, grain size and electrical resistivity. Compared to pure anatase samples, the presence of hematite lowered the temperature of completion of the anatase to rutile phase transformation to 850oC. Formation of pseudobrookite was also noted at this temperature. Further increase in the sintering temperature lead to increase in sample density and grain size and decrease in the electric resistivity, Hall coefficient and mobility.
Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia, 2013, 36-36
Publisher:
Belgrade : Institute of Technical Sciences of SASA
TY - CONF
AU - Vasiljević, Zorka Z
AU - Aleksić, Obrad S.
AU - Nikolić, Maria Vesna
PY - 2013
UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1640
AB - Starting nanopowders of TiO2 (anatase 99.7%) and a-Fe2O3 (hematite) were mixed in the weight ratio 60:40 and 40:60. Green samples were sintered in the temperature range 750-1250oC in air. Structural, morphological and electrical studies were carried out using XRD, SEM and EDS analysis and Hall measurements with the aim of analyzing the influence of the starting nanopowder structure on the resulting sample composition, density, grain size and electrical resistivity. Compared to pure anatase samples, the presence of hematite lowered the temperature of completion of the anatase to rutile phase transformation to 850oC. Formation of pseudobrookite was also noted at this temperature. Further increase in the sintering temperature lead to increase in sample density and grain size and decrease in the electric resistivity, Hall coefficient and mobility.
PB - Belgrade : Institute of Technical Sciences of SASA
C3 - Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia
T1 - 3 Structural, morphological and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures
EP - 36
SP - 36
UR - https://hdl.handle.net/21.15107/rcub_dais_447
ER -
@conference{
author = "Vasiljević, Zorka Z and Aleksić, Obrad S. and Nikolić, Maria Vesna",
year = "2013",
abstract = "Starting nanopowders of TiO2 (anatase 99.7%) and a-Fe2O3 (hematite) were mixed in the weight ratio 60:40 and 40:60. Green samples were sintered in the temperature range 750-1250oC in air. Structural, morphological and electrical studies were carried out using XRD, SEM and EDS analysis and Hall measurements with the aim of analyzing the influence of the starting nanopowder structure on the resulting sample composition, density, grain size and electrical resistivity. Compared to pure anatase samples, the presence of hematite lowered the temperature of completion of the anatase to rutile phase transformation to 850oC. Formation of pseudobrookite was also noted at this temperature. Further increase in the sintering temperature lead to increase in sample density and grain size and decrease in the electric resistivity, Hall coefficient and mobility.",
publisher = "Belgrade : Institute of Technical Sciences of SASA",
journal = "Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia",
title = "3 Structural, morphological and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures",
pages = "36-36",
url = "https://hdl.handle.net/21.15107/rcub_dais_447"
}
Vasiljević, Z. Z., Aleksić, O. S.,& Nikolić, M. V.. (2013). 3 Structural, morphological and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures. in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia
Belgrade : Institute of Technical Sciences of SASA., 36-36.
https://hdl.handle.net/21.15107/rcub_dais_447
Vasiljević ZZ, Aleksić OS, Nikolić MV. 3 Structural, morphological and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures. in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia. 2013;:36-36.
https://hdl.handle.net/21.15107/rcub_dais_447 .
Vasiljević, Zorka Z, Aleksić, Obrad S., Nikolić, Maria Vesna, "3 Structural, morphological and electrical properties of sintered Fe2O3/TiO2 nanopowder mixtures" in Program and the Book of Abstracts / Twelfth Young Researchers' Conference Materials Sciences and Engineering December 11-13, 2013, Belgrade, Serbia (2013):36-36,
https://hdl.handle.net/21.15107/rcub_dais_447 .
