Electrophoretic deposition of SrBi4Ti4O15 thick films on Al2O3 substrate

被引：1

作者：

Gu, D. G. ^{[1
]}

Li, G. R. ^{[1
]}

Xu, Z. J. ^{[1
]}

Zheng, L. Y. ^{[1
]}

Ding, A. L. ^{[1
]}

Yin, Q. R. ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China

来源：

JOURNAL OF ELECTROCERAMICS | 2008年 / 21卷 / 1-4期

关键词：

EPD; Thick films; Dispersant;

D O I：

10.1007/s10832-007-9256-6

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：

Electrophoretic deposition (EPD) is a powerful route to obtain thick films onto conductive substrate. In this work, ferroelectric SrBi4Ti4O15 films up to 15 mu m were prepared by EPD using submicrotneter SrBi4Ti4O15 (SBT) powders. The ethanol was used as the solvent with addition of HCl and PVB (dispersant). The zeta potential of SBT powder in ethanol is low compared to some other ceramics such as PZT, so it tends to flocculate and is more difficult to be deposited. With addition of PVB, the suspension was then stabilized. The deposition kinetics and the effect of additives were observed and discussed using DLVO theory. From SEM and XRD observation, the films obtained were crack-free and grain-oriented.

引用

页码：532 / 535

页数：4

共 11 条

[1] HETEROCOAGULATION .2. INTERACTION ENERGY OF 2 UNEQUAL SPHERES [J].