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KCI 등재

Effect of strontium on the structural and piezoelectric properties of the sol gel processed barium titanate

Journal of Ceramic Processing Research
약어 : J. Ceram. Process. Res.
2018 vol.19, no.2, pp.154 - 170
DOI : 10.36410/jcpr.2018.19.2.154
발행기관 : 한양대학교 청정에너지연구소
연구분야 : 재료공학
Copyright © 한양대학교 청정에너지연구소
Abdelhak El Ghandouri 1 ,  Salaheddine Sayouri 2 ,  TajEddine Lamcharfi 3 ,  Lahoucine Hajji 4

1LPTA

2LPTA

3LSSC

4F.S.T.G. University

4 회 열람

Structural, dielectric and piezoelectric properties of nanopowders of pure and strontium-doped BaTiO3 (Ba1-xSrx)TiO3 (x =0.00; 0.10; 0.20; 0.30 and 0.40), synthesized by the sol gel process, have been investigated. The samples crystallize in the pureperovskite structure and transform from tetragonal to pseudocubic under doping with Sr. The calculated average crystallitesize was about 30 nm. Dielectric parameters (dielectric permittivity and losses) were determined. Sr doping gives rise to adecrease of the ferro-to-paraelctric transition temperature and to an enhancement of the Positive Temperature Coefficient ofResistivity (PTCR). Piezoelectric parameters were also determined and their thermal behavior investigated.

(Ba, Sr)TiO3 ceramics, Sol Gel, Dielectric properties, Complex impedance, PTCR and Piezoelectric properties

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