Influence of the suspension composition on the electric field and deposition rate during electrophoretic deposition

被引：44

作者：

Anné, G ^{[1
]}

Vanmeensel, K ^{[1
]}

Vleugels, J ^{[1
]}

Van der Biest, O ^{[1
]}

机构：

[1] Katholieke Univ Leuven, Dept Met & Mat Engn, MTM, B-3001 Heverlee, Belgium

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2004年 / 245卷 / 1-3期

关键词：

electrophoretic deposition; non-aqueous suspensions; conductivity; Al2O3; potential drop;

D O I：

10.1016/j.colsurfa.2004.07.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Current and suspension conductivity measurements during electrophoretic deposition (EPD) of Al2O3 powder from different organic suspensions revealed that the suspension composition determines whether a potential drop is generated at the deposition electrode or not. An electrical resistive layer was formed during electrophoretic deposition of Al2O3 from ethanol with HNO3, HCl, poly(ethylene)imine or CH3COOH addition, whereas no potential drop was observed when depositing from a methylethylketone (MEK) + butylamine suspension. Additionally, a clear relationship was found between the yield of deposition and the magnitude of the potential drop at the deposition. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：35 / 39

页数：5

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