Influence of electrostatic interactions in the deposit on the electrical field strength during electrophoretic deposition

被引：8
|
作者：
Anne, Guy
Neirinck, Bram
Vanmeensel, Kim
Van der Biest, Omer
Vleugels, Jef
机构：
来源：
ELECTROPHORETIC DEPOSITON: FUNDAMENTALS AND APPLICATIONS II | 2006年 / 314卷
关键词：
electrophoretic deposition; modelling; potential drop;
D O I：
10.4028/www.scientific.net/KEM.314.181
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：
A model was developed to explain the magnitude of the potential drop over the deposit for non-conductive powders during electrophoretic deposition (EPD). The magnitude of the potential drop over the deposit is explained in terms of a reduced ion transport through the deposit, as controlled by the pore potential that is related to the thickness of the electrostatic double layer relative to the pore radius and the magnitude of the surface potential of the powder particles. This model was validated for EPD of Al2O3 powder from ethanol-based suspensions with HNO3 addition. The specific resistivity of the deposit could be related to the calculated potential in the pores of the deposit.
引用
收藏
页码：181 / 186
页数：6
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