Solvothermally synthesized tetragonal barium titanate powders using H2O/EtOH solvent

Soon Gyu Kwon; Byung Hyun Park; Kyoon Choi; Eui Seok Choi; Sahn Nam; Jeong Wook Kim; Jong Hee Kim

doi:10.1016/j.jeurceramsoc.2005.02.003

Solvothermally synthesized tetragonal barium titanate powders using H₂O/EtOH solvent

Soon Gyu Kwon, Byung Hyun Park, Kyoon Choi, Eui Seok Choi, Sahn Nam, Jeong Wook Kim, Jong Hee Kim

Department of Materials Science and Engineering

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

52 Citations (Scopus)

Abstract

Multilayer ceramic capacitor (MLCC) miniaturization has increased the demand for superfine BaTiO₃ powder due to its thin dielectric layer. Hydrothermally synthesized BaTiO₃ powder has submicron size, high purity and good crystalline nature at low synthetic temperature. However, the powder has a pseudo-cubic phase resulting in poor dielectric properties due to size effect and hydroxyl ion inclusion in the BaTiO₃ lattice. We attempted a superfine (lower than 100 nm) highly tetragonal BaTiO₃ powder via a solvothermal method without precipitating agent. Solvent composition effects on the BaTiO₃ powder tetragonality were discussed.

Original language	English
Pages (from-to)	1401-1404
Number of pages	4
Journal	Journal of the European Ceramic Society
Volume	26
Issue number	8
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2005.02.003
Publication status	Published - 2006

Keywords

BaTiO
Capacitors
Dielectric properties
Powders-chemical preparation
Tetragonality

ASJC Scopus subject areas

Ceramics and Composites
Materials Chemistry

Access to Document

10.1016/j.jeurceramsoc.2005.02.003

Cite this

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title = "Solvothermally synthesized tetragonal barium titanate powders using H2O/EtOH solvent",

abstract = "Multilayer ceramic capacitor (MLCC) miniaturization has increased the demand for superfine BaTiO3 powder due to its thin dielectric layer. Hydrothermally synthesized BaTiO3 powder has submicron size, high purity and good crystalline nature at low synthetic temperature. However, the powder has a pseudo-cubic phase resulting in poor dielectric properties due to size effect and hydroxyl ion inclusion in the BaTiO3 lattice. We attempted a superfine (lower than 100 nm) highly tetragonal BaTiO3 powder via a solvothermal method without precipitating agent. Solvent composition effects on the BaTiO3 powder tetragonality were discussed.",

keywords = "BaTiO, Capacitors, Dielectric properties, Powders-chemical preparation, Tetragonality",

author = "Kwon, {Soon Gyu} and Park, {Byung Hyun} and Kyoon Choi and Choi, {Eui Seok} and Sahn Nam and Kim, {Jeong Wook} and Kim, {Jong Hee}",

year = "2006",

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language = "English",

volume = "26",

pages = "1401--1404",

journal = "Journal of the European Ceramic Society",

issn = "0955-2219",

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TY - JOUR

T1 - Solvothermally synthesized tetragonal barium titanate powders using H2O/EtOH solvent

AU - Kwon, Soon Gyu

AU - Park, Byung Hyun

AU - Choi, Kyoon

AU - Choi, Eui Seok

AU - Nam, Sahn

AU - Kim, Jeong Wook

AU - Kim, Jong Hee

PY - 2006

Y1 - 2006

N2 - Multilayer ceramic capacitor (MLCC) miniaturization has increased the demand for superfine BaTiO3 powder due to its thin dielectric layer. Hydrothermally synthesized BaTiO3 powder has submicron size, high purity and good crystalline nature at low synthetic temperature. However, the powder has a pseudo-cubic phase resulting in poor dielectric properties due to size effect and hydroxyl ion inclusion in the BaTiO3 lattice. We attempted a superfine (lower than 100 nm) highly tetragonal BaTiO3 powder via a solvothermal method without precipitating agent. Solvent composition effects on the BaTiO3 powder tetragonality were discussed.

AB - Multilayer ceramic capacitor (MLCC) miniaturization has increased the demand for superfine BaTiO3 powder due to its thin dielectric layer. Hydrothermally synthesized BaTiO3 powder has submicron size, high purity and good crystalline nature at low synthetic temperature. However, the powder has a pseudo-cubic phase resulting in poor dielectric properties due to size effect and hydroxyl ion inclusion in the BaTiO3 lattice. We attempted a superfine (lower than 100 nm) highly tetragonal BaTiO3 powder via a solvothermal method without precipitating agent. Solvent composition effects on the BaTiO3 powder tetragonality were discussed.

KW - BaTiO

KW - Capacitors

KW - Dielectric properties

KW - Powders-chemical preparation

KW - Tetragonality

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