Effects of sintering temperature and poling conditions on the electrical properties of Ba0.70Ca0.30TiO3 diphasic piezoelectric ceramics

Cai Xia Li; Bin Yang; Shan Tao Zhang; Rui Zhang; Wen Wu Cao

doi:10.1016/j.ceramint.2012.09.073

Effects of sintering temperature and poling conditions on the electrical properties of Ba_0.70Ca_0.30TiO₃ diphasic piezoelectric ceramics

Cai Xia Li
, Bin Yang
, Shan Tao Zhang
, Rui Zhang
, Wen Wu Cao

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

The effects of sintering temperature and poling conditions on the electrical properties of tetragonal and orthorhombic diphasic Ba _0.70Ca_0.30TiO₃ (BCT) lead-free ceramics have been systematically investigated. On the one hand, with increasing sintering temperature from 1270 °C to 1400 °C, the bulk density increases monotonically and the Curie temperature keeps almost constant with the value of ∼120 °C, whereas the grain size, the maximum relative dielectric constant, room temperature polarization reach the maximum values for samples sintered at 1340 °C. On the other hand, it is found that the piezoelectric property depends on poling electric field and poling temperature significantly. An enhanced piezoelectric behavior of d₃₃=126 pC/N, k _p=0.29, and Q_m=588 is obtained for the BCT ceramics poled at 100 °C with 30 kV/cm field for 20 min. The aging behavior of the piezoelectric property is also investigated.

Original language	English (US)
Pages (from-to)	2967-2973
Number of pages	7
Journal	Ceramics International
Volume	39
Issue number	3
DOIs	https://doi.org/10.1016/j.ceramint.2012.09.073
State	Published - Apr 2013

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Process Chemistry and Technology
Surfaces, Coatings and Films
Materials Chemistry

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10.1016/j.ceramint.2012.09.073

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@article{c41ae503dc3144be8205ed6f7def363c,

title = "Effects of sintering temperature and poling conditions on the electrical properties of Ba0.70Ca0.30TiO3 diphasic piezoelectric ceramics",

abstract = "The effects of sintering temperature and poling conditions on the electrical properties of tetragonal and orthorhombic diphasic Ba 0.70Ca0.30TiO3 (BCT) lead-free ceramics have been systematically investigated. On the one hand, with increasing sintering temperature from 1270 °C to 1400 °C, the bulk density increases monotonically and the Curie temperature keeps almost constant with the value of ∼120 °C, whereas the grain size, the maximum relative dielectric constant, room temperature polarization reach the maximum values for samples sintered at 1340 °C. On the other hand, it is found that the piezoelectric property depends on poling electric field and poling temperature significantly. An enhanced piezoelectric behavior of d33=126 pC/N, k p=0.29, and Qm=588 is obtained for the BCT ceramics poled at 100 °C with 30 kV/cm field for 20 min. The aging behavior of the piezoelectric property is also investigated.",

author = "Li, \{Cai Xia\} and Bin Yang and Zhang, \{Shan Tao\} and Rui Zhang and Cao, \{Wen Wu\}",

note = "Funding Information: This work was supported by the National Science and Technology Support Program ( SQ2012BAJY3766 ), the National Nature Science Foundation of China ( 10704021, 51102062, and 11174127 ), the Key Scientific and Technological Project of Harbin (Grant no. 2009AA3BS131 ). ",

year = "2013",

month = apr,

doi = "10.1016/j.ceramint.2012.09.073",

language = "English (US)",

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T1 - Effects of sintering temperature and poling conditions on the electrical properties of Ba0.70Ca0.30TiO3 diphasic piezoelectric ceramics

AU - Li, Cai Xia

AU - Yang, Bin

AU - Zhang, Shan Tao

AU - Zhang, Rui

AU - Cao, Wen Wu

N1 - Funding Information: This work was supported by the National Science and Technology Support Program ( SQ2012BAJY3766 ), the National Nature Science Foundation of China ( 10704021, 51102062, and 11174127 ), the Key Scientific and Technological Project of Harbin (Grant no. 2009AA3BS131 ).

PY - 2013/4

Y1 - 2013/4

N2 - The effects of sintering temperature and poling conditions on the electrical properties of tetragonal and orthorhombic diphasic Ba 0.70Ca0.30TiO3 (BCT) lead-free ceramics have been systematically investigated. On the one hand, with increasing sintering temperature from 1270 °C to 1400 °C, the bulk density increases monotonically and the Curie temperature keeps almost constant with the value of ∼120 °C, whereas the grain size, the maximum relative dielectric constant, room temperature polarization reach the maximum values for samples sintered at 1340 °C. On the other hand, it is found that the piezoelectric property depends on poling electric field and poling temperature significantly. An enhanced piezoelectric behavior of d33=126 pC/N, k p=0.29, and Qm=588 is obtained for the BCT ceramics poled at 100 °C with 30 kV/cm field for 20 min. The aging behavior of the piezoelectric property is also investigated.

AB - The effects of sintering temperature and poling conditions on the electrical properties of tetragonal and orthorhombic diphasic Ba 0.70Ca0.30TiO3 (BCT) lead-free ceramics have been systematically investigated. On the one hand, with increasing sintering temperature from 1270 °C to 1400 °C, the bulk density increases monotonically and the Curie temperature keeps almost constant with the value of ∼120 °C, whereas the grain size, the maximum relative dielectric constant, room temperature polarization reach the maximum values for samples sintered at 1340 °C. On the other hand, it is found that the piezoelectric property depends on poling electric field and poling temperature significantly. An enhanced piezoelectric behavior of d33=126 pC/N, k p=0.29, and Qm=588 is obtained for the BCT ceramics poled at 100 °C with 30 kV/cm field for 20 min. The aging behavior of the piezoelectric property is also investigated.

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Effects of sintering temperature and poling conditions on the electrical properties of Ba_0.70Ca_0.30TiO₃ diphasic piezoelectric ceramics

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