Nano-sized Ag-BaTiO3 composite powders with various amount of Ag prepared by spray pyrolysis

You Na Ko; Seung Ho Choi; Yun Chan Kang

doi:10.1016/j.jeurceramsoc.2012.11.028

Nano-sized Ag-BaTiO₃ composite powders with various amount of Ag prepared by spray pyrolysis

You Na Ko, Seung Ho Choi, Yun Chan Kang

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

9 Citations (Scopus)

Abstract

The preparation of precursors of BaTiO₃ nanopowders with various amounts of Ag by spray pyrolysis is reported. The precursor powders obtained with hollow and thin-wall particles are composed of uniformly dispersed Ba, Ti, and Ag components. After post-treatment and a simple milling process, the precursor powders, irrespective of the amount of Ag, are transformed into Ag-BaTiO₃ composite nanoparticles. The mean particle size of the Ag (10mol%)-BaTiO₃ powders is 142nm. BaTiO₃ pellets containing Ag exhibit dense structures even at a low sintering temperature of 1000°C. BaTiO₃ pellets with 10mol% Ag show the highest dielectric constant of 2950, as opposed to the pure BaTiO₃ pellets (without Ag), whose dielectric constant is 1827.

Original language	English
Pages (from-to)	1335-1341
Number of pages	7
Journal	Journal of the European Ceramic Society
Volume	33
Issue number	7
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2012.11.028
Publication status	Published - 2013 Jul
Externally published	Yes

Keywords

Barium titanate
Composite
Dielectric material
Nanopowder
Spray pyrolysis

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2012.11.028

Cite this

@article{82cbde0902144932bb374dd4975cfd68,

title = "Nano-sized Ag-BaTiO3 composite powders with various amount of Ag prepared by spray pyrolysis",

abstract = "The preparation of precursors of BaTiO3 nanopowders with various amounts of Ag by spray pyrolysis is reported. The precursor powders obtained with hollow and thin-wall particles are composed of uniformly dispersed Ba, Ti, and Ag components. After post-treatment and a simple milling process, the precursor powders, irrespective of the amount of Ag, are transformed into Ag-BaTiO3 composite nanoparticles. The mean particle size of the Ag (10mol%)-BaTiO3 powders is 142nm. BaTiO3 pellets containing Ag exhibit dense structures even at a low sintering temperature of 1000°C. BaTiO3 pellets with 10mol% Ag show the highest dielectric constant of 2950, as opposed to the pure BaTiO3 pellets (without Ag), whose dielectric constant is 1827.",

keywords = "Barium titanate, Composite, Dielectric material, Nanopowder, Spray pyrolysis",

author = "Ko, {You Na} and Choi, {Seung Ho} and Kang, {Yun Chan}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012R1A2A2A02046367 ). This study was supported by the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2011-50210 ).",

year = "2013",

month = jul,

doi = "10.1016/j.jeurceramsoc.2012.11.028",

language = "English",

volume = "33",

pages = "1335--1341",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

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T1 - Nano-sized Ag-BaTiO3 composite powders with various amount of Ag prepared by spray pyrolysis

AU - Ko, You Na

AU - Choi, Seung Ho

AU - Kang, Yun Chan

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012R1A2A2A02046367 ). This study was supported by the Converging Research Center Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2011-50210 ).

PY - 2013/7

Y1 - 2013/7

N2 - The preparation of precursors of BaTiO3 nanopowders with various amounts of Ag by spray pyrolysis is reported. The precursor powders obtained with hollow and thin-wall particles are composed of uniformly dispersed Ba, Ti, and Ag components. After post-treatment and a simple milling process, the precursor powders, irrespective of the amount of Ag, are transformed into Ag-BaTiO3 composite nanoparticles. The mean particle size of the Ag (10mol%)-BaTiO3 powders is 142nm. BaTiO3 pellets containing Ag exhibit dense structures even at a low sintering temperature of 1000°C. BaTiO3 pellets with 10mol% Ag show the highest dielectric constant of 2950, as opposed to the pure BaTiO3 pellets (without Ag), whose dielectric constant is 1827.

AB - The preparation of precursors of BaTiO3 nanopowders with various amounts of Ag by spray pyrolysis is reported. The precursor powders obtained with hollow and thin-wall particles are composed of uniformly dispersed Ba, Ti, and Ag components. After post-treatment and a simple milling process, the precursor powders, irrespective of the amount of Ag, are transformed into Ag-BaTiO3 composite nanoparticles. The mean particle size of the Ag (10mol%)-BaTiO3 powders is 142nm. BaTiO3 pellets containing Ag exhibit dense structures even at a low sintering temperature of 1000°C. BaTiO3 pellets with 10mol% Ag show the highest dielectric constant of 2950, as opposed to the pure BaTiO3 pellets (without Ag), whose dielectric constant is 1827.

KW - Barium titanate

KW - Composite

KW - Dielectric material

KW - Nanopowder

KW - Spray pyrolysis

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DO - 10.1016/j.jeurceramsoc.2012.11.028

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JF - Journal of the European Ceramic Society

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