Solvothermally synthesized tetragonal barium titanate powders using H2O/EtOH solvent

被引：57

作者：

Kwon, SG

Park, BH

Choi, K ^{[1
]}

Choi, ES

Nam, S

Kim, JW

Kim, JH

机构：

[1] Korea Inst Ceram Engn & Technol, Seoul 153801, South Korea

[2] Korea Univ, Div Mat Sci & Engn, Seoul 136701, South Korea

[3] Samsung Electromech Co Ltd, Suwon 442743, South Korea

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2006年 / 26卷 / 08期

关键词：

powders-chemical preparation; dielectric properties; BaTiO3; capacitors; tetragonality;

D O I：

10.1016/j.jeurceramsoc.2005.02.003

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Multilayer cerarnic 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 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. (c) 2005 published by Elsevier Ltd.

引用

页码：1401 / 1404

页数：4

共 8 条

[1] SIZE-INDUCED DIFFUSE PHASE-TRANSITION IN THE NANOCRYSTALLINE FERROELECTRIC PBTIO3 [J].