Effects of la content on the properties of Ba1-xLa xTiO3 powders prepared by spray pyrolysis

D. S. Jung; H. Y. Koo; H. C. Jang; Y. C. Kang

doi:10.1007/s12540-009-0809-2

Effects of la content on the properties of Ba_1-xLa _xTiO₃ powders prepared by spray pyrolysis

D. S. Jung, H. Y. Koo, H. C. Jang, Y. C. Kang

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

13 Citations (Scopus)

Abstract

Nano-sized Bai_1-xLa_xTiO₃ (0 < x < 0.03) powders were prepared by ultrasonic spray pyrolysis from the spray solution with citric acid. The mean sizes of the primary particles decreased from 110 nm to 59 nm when the x of the Ba_1-xLa_xTiO ₃ powders was changed from 0 to 0.03. The BET surface areas of the powders changed from 9.1 m²/g to 16.9 m²/g. The pure BaTiO₃ and La-doped BaTiO₃ powders had both tetragonal and cubic crystal structures. The average grain size of the sintered BaTiO ₃ specimen was 2.8 uμrn, while those of the La-doped BaTiO ₃ pellets ranged from 1.04 uμm to 0.68 uμm according to the doping concentrations of La. The dielectric constant of Ba_1-xLa _xTiO₃(0.01 <x< 0.03) pellets ranged from 2500 to 3855 when sintered at 1280°

Original language	English
Pages (from-to)	809-814
Number of pages	6
Journal	Metals and Materials International
Volume	15
Issue number	5
DOIs	https://doi.org/10.1007/s12540-009-0809-2
Publication status	Published - 2009 Oct
Externally published	Yes

Keywords

Barium titanate
Nano powder
Spray pyrolysis

ASJC Scopus subject areas

Condensed Matter Physics
Mechanics of Materials
Metals and Alloys
Materials Chemistry

Access to Document

10.1007/s12540-009-0809-2

Cite this

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title = "Effects of la content on the properties of Ba1-xLa xTiO3 powders prepared by spray pyrolysis",

abstract = "Nano-sized Bai1-xLaxTiO3 (0 < x < 0.03) powders were prepared by ultrasonic spray pyrolysis from the spray solution with citric acid. The mean sizes of the primary particles decreased from 110 nm to 59 nm when the x of the Ba1-xLaxTiO 3 powders was changed from 0 to 0.03. The BET surface areas of the powders changed from 9.1 m2/g to 16.9 m2/g. The pure BaTiO3 and La-doped BaTiO3 powders had both tetragonal and cubic crystal structures. The average grain size of the sintered BaTiO 3 specimen was 2.8 uμrn, while those of the La-doped BaTiO 3 pellets ranged from 1.04 uμm to 0.68 uμm according to the doping concentrations of La. The dielectric constant of Ba1-xLa xTiO3(0.01 ",

keywords = "Barium titanate, Nano powder, Spray pyrolysis",

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T1 - Effects of la content on the properties of Ba1-xLa xTiO3 powders prepared by spray pyrolysis

AU - Jung, D. S.

AU - Koo, H. Y.

AU - Jang, H. C.

AU - Kang, Y. C.

PY - 2009/10

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N2 - Nano-sized Bai1-xLaxTiO3 (0 < x < 0.03) powders were prepared by ultrasonic spray pyrolysis from the spray solution with citric acid. The mean sizes of the primary particles decreased from 110 nm to 59 nm when the x of the Ba1-xLaxTiO 3 powders was changed from 0 to 0.03. The BET surface areas of the powders changed from 9.1 m2/g to 16.9 m2/g. The pure BaTiO3 and La-doped BaTiO3 powders had both tetragonal and cubic crystal structures. The average grain size of the sintered BaTiO 3 specimen was 2.8 uμrn, while those of the La-doped BaTiO 3 pellets ranged from 1.04 uμm to 0.68 uμm according to the doping concentrations of La. The dielectric constant of Ba1-xLa xTiO3(0.01

AB - Nano-sized Bai1-xLaxTiO3 (0 < x < 0.03) powders were prepared by ultrasonic spray pyrolysis from the spray solution with citric acid. The mean sizes of the primary particles decreased from 110 nm to 59 nm when the x of the Ba1-xLaxTiO 3 powders was changed from 0 to 0.03. The BET surface areas of the powders changed from 9.1 m2/g to 16.9 m2/g. The pure BaTiO3 and La-doped BaTiO3 powders had both tetragonal and cubic crystal structures. The average grain size of the sintered BaTiO 3 specimen was 2.8 uμrn, while those of the La-doped BaTiO 3 pellets ranged from 1.04 uμm to 0.68 uμm according to the doping concentrations of La. The dielectric constant of Ba1-xLa xTiO3(0.01

KW - Barium titanate

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