Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis showed that the resulting thick film samples were composed of pseudobrookite (Fe2TiO5) and also excess rutile (TiO2) in the case of PSB-1.5 samples with a small grained and relatively homogenous microstructure. An electric resistivity with negative temperature coefficient (NTC) was observed. An interdigitated electrode geometry was designed and different electrode spacing (0.2 and 0.25 mm) was analyzed. The electrode structure was printed of PdAg paste. The resistivity of pseudobrookite was measured and analyzed in view of possibl...e applications as a sensor of environmental gases with sufficiently high sensitivity at operating temperatures lower than conventional gas sensor systems.
Keywords:
pseudobrookite / thick films / temperature sensors / gas detectors / titanium compounds
Source:
2016 39th International Spring Seminar on Electronics Technology (ISSE), 2016
TY - CONF
AU - Mišković, Goran
AU - Luković, Miloljub D.
AU - Nikolić, Maria Vesna
AU - Vasiljević, Zorka Ž.
AU - Nicolics, Johann
AU - Aleksić, Obrad S.
PY - 2016
UR - https://dais.sanu.ac.rs/123456789/2368
AB - Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis showed that the resulting thick film samples were composed of pseudobrookite (Fe2TiO5) and also excess rutile (TiO2) in the case of PSB-1.5 samples with a small grained and relatively homogenous microstructure. An electric resistivity with negative temperature coefficient (NTC) was observed. An interdigitated electrode geometry was designed and different electrode spacing (0.2 and 0.25 mm) was analyzed. The electrode structure was printed of PdAg paste. The resistivity of pseudobrookite was measured and analyzed in view of possible applications as a sensor of environmental gases with sufficiently high sensitivity at operating temperatures lower than conventional gas sensor systems.
PB - IEEE
C3 - 2016 39th International Spring Seminar on Electronics Technology (ISSE)
T1 - Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing
DO - 10.1109/ISSE.2016.7563226
UR - https://hdl.handle.net/21.15107/rcub_dais_2368
ER -
@conference{
author = "Mišković, Goran and Luković, Miloljub D. and Nikolić, Maria Vesna and Vasiljević, Zorka Ž. and Nicolics, Johann and Aleksić, Obrad S.",
year = "2016",
abstract = "Two pseudobrookite (PSB) containing pastes were composed of a mixture of starting nanopowders of hematite (a-Fe2O3) and anatase (TiO2) in the molar ratios 1:1 (referred to as PSB-1) and 1:1.5 (referred to as PSB-1.5), respectively, organic vehicle and glass frit. The pastes were screen printed on alumina (Al2O3) substrates and sintered in a hybrid conveyor furnace at 850 °C/10 min in air. X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis showed that the resulting thick film samples were composed of pseudobrookite (Fe2TiO5) and also excess rutile (TiO2) in the case of PSB-1.5 samples with a small grained and relatively homogenous microstructure. An electric resistivity with negative temperature coefficient (NTC) was observed. An interdigitated electrode geometry was designed and different electrode spacing (0.2 and 0.25 mm) was analyzed. The electrode structure was printed of PdAg paste. The resistivity of pseudobrookite was measured and analyzed in view of possible applications as a sensor of environmental gases with sufficiently high sensitivity at operating temperatures lower than conventional gas sensor systems.",
publisher = "IEEE",
journal = "2016 39th International Spring Seminar on Electronics Technology (ISSE)",
title = "Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing",
doi = "10.1109/ISSE.2016.7563226",
url = "https://hdl.handle.net/21.15107/rcub_dais_2368"
}
Mišković, G., Luković, M. D., Nikolić, M. V., Vasiljević, Z. Ž., Nicolics, J.,& Aleksić, O. S.. (2016). Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing. in 2016 39th International Spring Seminar on Electronics Technology (ISSE)
IEEE..
https://doi.org/10.1109/ISSE.2016.7563226
https://hdl.handle.net/21.15107/rcub_dais_2368
Mišković G, Luković MD, Nikolić MV, Vasiljević ZŽ, Nicolics J, Aleksić OS. Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing. in 2016 39th International Spring Seminar on Electronics Technology (ISSE). 2016;.
doi:10.1109/ISSE.2016.7563226
https://hdl.handle.net/21.15107/rcub_dais_2368 .
Mišković, Goran, Luković, Miloljub D., Nikolić, Maria Vesna, Vasiljević, Zorka Ž., Nicolics, Johann, Aleksić, Obrad S., "Analysis of electronic properties of pseudobrookite thick films with possible application for NO gas sensing" in 2016 39th International Spring Seminar on Electronics Technology (ISSE) (2016),
https://doi.org/10.1109/ISSE.2016.7563226 .,
https://hdl.handle.net/21.15107/rcub_dais_2368 .
