Nanocrystalline barium titanate (BT) was synthesized by the sol gel method. The dry gel obtained was first treated in themicrowave (MW) and then calcined at different temperatures. A pure tetragonal phase was obtained under heat treatmentat 750 oC which is a relatively low temperature. SEM image reveals a fairly dense and uniform microstructure. Dielectricmeasurements performed on the sintered BaTiO3 sample at 1200 oC revealed the presence of the resonance phenomenon atfrequencies lower than 2 MHz and the existence of a weak positive temperature coefficient of resistivity (PTCR) just abovethe Curie temperature. Electric impedance analysis shows the predominance of the grain boundary (gb) contribution andenables determination of activation energies of the gb and the bulk effect and their relative capacitance and resistanceelements.
KCI 등재
A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder
Journal of Ceramic Processing Research
약어 : J. Ceram. Process. Res.
2016 vol.17, no.12, pp.1236 - 1242
DOI : 10.36410/jcpr.2016.17.12.1236
발행기관 : 한양대학교 청정에너지연구소
연구분야 : 재료공학
Copyright © 한양대학교 청정에너지연구소
약어 : J. Ceram. Process. Res.
2016 vol.17, no.12, pp.1236 - 1242
DOI : 10.36410/jcpr.2016.17.12.1236
발행기관 : 한양대학교 청정에너지연구소
연구분야 : 재료공학
Copyright © 한양대학교 청정에너지연구소
Nanocrystalline BaTiO3, Sol gel process, Microwave, PTCR, Resonance
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A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder
@article{ART002327390},
author={
Abdelaziz Salhi
and
Salaheddine Sayouri
and
Lahoucine Hajji
and
TajEddine Lamcharfi
},
title={
A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder
},
journal={
Journal of Ceramic Processing Research
},
issn={1229-9162},
year={2016},
number={12},
pages={1236 - 1242},
doi={10.36410/jcpr.2016.17.12.1236},
url={http://dx.doi.org/10.36410/jcpr.2016.17.12.1236}
TY - JOUR
AU - Abdelaziz Salhi
AU - Salaheddine Sayouri
AU - Lahoucine Hajji
AU - TajEddine Lamcharfi
TI - A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder
T2 - Journal of Ceramic Processing Research
PY - 2016
VL - 17
IS - 12
PB - 한양대학교 청정에너지연구소
SP - 1236 - 1242
SN - 1229-9162
AB - Nanocrystalline barium titanate (BT) was synthesized by the sol gel method. The dry gel obtained was first treated in themicrowave (MW) and then calcined at different temperatures. A pure tetragonal phase was obtained under heat treatmentat 750 oC which is a relatively low temperature. SEM image reveals a fairly dense and uniform microstructure. Dielectricmeasurements performed on the sintered BaTiO3 sample at 1200 oC revealed the presence of the resonance phenomenon atfrequencies lower than 2 MHz and the existence of a weak positive temperature coefficient of resistivity (PTCR) just abovethe Curie temperature. Electric impedance analysis shows the predominance of the grain boundary (gb) contribution andenables determination of activation energies of the gb and the bulk effect and their relative capacitance and resistanceelements.
KW - Nanocrystalline BaTiO3, Sol gel process, Microwave, PTCR, Resonance
DO - 10.36410/jcpr.2016.17.12.1236
UR - http://dx.doi.org/10.36410/jcpr.2016.17.12.1236
ER -
Abdelaziz Salhi , Salaheddine Sayouri , Lahoucine Hajji and TajEddine Lamcharfi (2016). A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder. Journal of Ceramic Processing Research, 17(12), 1236 - 1242.
Abdelaziz Salhi , Salaheddine Sayouri , Lahoucine Hajji and TajEddine Lamcharfi . 2016, “A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder”, vol.17, no.12, pp. 1236 - 1242. Available from: doi:10.36410/jcpr.2016.17.12.1236
Abdelaziz Salhi 외. “A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder“ Journal of Ceramic Processing Research 17.12 pp. 1236 - 1242. (2016): 1236.
Abdelaziz Salhi , Salaheddine Sayouri , Lahoucine Hajji , TajEddine Lamcharfi . A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder Journal of Ceramic Processing Research [Internet]. 2016; 17(12), : 1236 - 1242. Available from: doi:10.36410/jcpr.2016.17.12.1236
Abdelaziz Salhi , Salaheddine Sayouri , Lahoucine Hajji and TajEddine Lamcharfi . “A new synthesis technique and structural, microstructural and dielectric properties of BaTiO3 nanopowder“ Journal of Ceramic Processing Research 17, no.12, (2016): 1236 - 1242. doi: :10.36410/jcpr.2016.17.12.1236