The influence of the processing conditions on the properties of hydrothermal processed barium titanium oxide powders

被引：17

作者：

Araújo, FGS

Mendes, AA

Pinto, LCB

机构：

[1] Fed Univ Ouro Preto, Dept Phys, REDEMAT, BR-30240000 Ouro Preto, MG, Brazil

[2] CETEC, Technol Ctr Minas Gerais, Belo Horizonte, MG, Brazil

来源：

SCRIPTA MATERIALIA | 2000年 / 43卷 / 05期

关键词：

powder processing; hydrothermal;

D O I：

10.1016/S1359-6462(00)00418-8

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Crystalline, tetragonal barium titanium oxide powders were produced by hydrothermal synthesis at temperatures as low as 220 °C for 20 h. Higher Ba/Ti ratios during processing increased the powder particle sizes and tetragonality factor, but decreased the final skeletal density. A critical average particle size for the stabilization of the tetragonal phase was 130 nm.

引用

页码：447 / 452

页数：6

共 21 条

[1]

ADAIR JH, 1988, CERAM T CERAM POWDER, V1, P135

[2]

ARAUJO FGS, 1996, REV CERAM, V42, P490

[3] DIELECTRIC-PROPERTIES OF FINE-GRAINED BARIUM-TITANATE CERAMICS [J].