Low temperature synthesis and dielectric, ferroelectric and piezoelectric study of microwave sintered BaTiO 3 ceramics

Sonia; R. K. Patel; P. Kumar; C. Prakash; D. K. Agrawal

doi:10.1016/j.ceramint.2011.09.045

Low temperature synthesis and dielectric, ferroelectric and piezoelectric study of microwave sintered BaTiO ₃ ceramics

Sonia, R. K. Patel, P. Kumar, C. Prakash, D. K. Agrawal

Materials Research Institute (MRI)

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

71 Scopus citations

Abstract

Barium titanate (BaTiO ₃/BT) ferroelectric system was synthesized in single perovskite phase at low temperature by using powders derived from modified solid state reaction (MSSR) and sintered by microwave (MW) processing routes. Conventional calcination temperature was optimized at 900 °C for 4 h. MW sintering of BT samples was carried out at 1100 °C for 30 min to get dense (98% density) ceramics. Room temperature (RT) dielectric constant (ε _r) and dielectric loss (tan δ) at 1 kHz frequency of MW sintered BT samples was found to be ∼2500 and 0.03, respectively. Saturated polarization vs. electric field (P-E) loops with remnant polarization (P _r) ∼6 μC/cm ² and coercive field (E _c) ∼1.45 kV/cm confirmed the ferroelectric nature of MW sintered BT samples. Piezoelectric coefficient from strain vs. electric field (S-E) loops study was found to be 335 pm/V.

Original language	English (US)
Pages (from-to)	1585-1589
Number of pages	5
Journal	Ceramics International
Volume	38
Issue number	2
DOIs	https://doi.org/10.1016/j.ceramint.2011.09.045
State	Published - Mar 2012

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.2011.09.045

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title = "Low temperature synthesis and dielectric, ferroelectric and piezoelectric study of microwave sintered BaTiO 3 ceramics",

abstract = "Barium titanate (BaTiO 3/BT) ferroelectric system was synthesized in single perovskite phase at low temperature by using powders derived from modified solid state reaction (MSSR) and sintered by microwave (MW) processing routes. Conventional calcination temperature was optimized at 900 °C for 4 h. MW sintering of BT samples was carried out at 1100 °C for 30 min to get dense (98% density) ceramics. Room temperature (RT) dielectric constant (ε r) and dielectric loss (tan δ) at 1 kHz frequency of MW sintered BT samples was found to be ∼2500 and 0.03, respectively. Saturated polarization vs. electric field (P-E) loops with remnant polarization (P r) ∼6 μC/cm 2 and coercive field (E c) ∼1.45 kV/cm confirmed the ferroelectric nature of MW sintered BT samples. Piezoelectric coefficient from strain vs. electric field (S-E) loops study was found to be 335 pm/V.",

author = "Sonia and Patel, {R. K.} and P. Kumar and C. Prakash and Agrawal, {D. K.}",

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AU - Sonia,

AU - Patel, R. K.

AU - Kumar, P.

AU - Prakash, C.

AU - Agrawal, D. K.

PY - 2012/3

Y1 - 2012/3

N2 - Barium titanate (BaTiO 3/BT) ferroelectric system was synthesized in single perovskite phase at low temperature by using powders derived from modified solid state reaction (MSSR) and sintered by microwave (MW) processing routes. Conventional calcination temperature was optimized at 900 °C for 4 h. MW sintering of BT samples was carried out at 1100 °C for 30 min to get dense (98% density) ceramics. Room temperature (RT) dielectric constant (ε r) and dielectric loss (tan δ) at 1 kHz frequency of MW sintered BT samples was found to be ∼2500 and 0.03, respectively. Saturated polarization vs. electric field (P-E) loops with remnant polarization (P r) ∼6 μC/cm 2 and coercive field (E c) ∼1.45 kV/cm confirmed the ferroelectric nature of MW sintered BT samples. Piezoelectric coefficient from strain vs. electric field (S-E) loops study was found to be 335 pm/V.

AB - Barium titanate (BaTiO 3/BT) ferroelectric system was synthesized in single perovskite phase at low temperature by using powders derived from modified solid state reaction (MSSR) and sintered by microwave (MW) processing routes. Conventional calcination temperature was optimized at 900 °C for 4 h. MW sintering of BT samples was carried out at 1100 °C for 30 min to get dense (98% density) ceramics. Room temperature (RT) dielectric constant (ε r) and dielectric loss (tan δ) at 1 kHz frequency of MW sintered BT samples was found to be ∼2500 and 0.03, respectively. Saturated polarization vs. electric field (P-E) loops with remnant polarization (P r) ∼6 μC/cm 2 and coercive field (E c) ∼1.45 kV/cm confirmed the ferroelectric nature of MW sintered BT samples. Piezoelectric coefficient from strain vs. electric field (S-E) loops study was found to be 335 pm/V.

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JO - Ceramics International

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Low temperature synthesis and dielectric, ferroelectric and piezoelectric study of microwave sintered BaTiO ₃ ceramics

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