Functionally graded ZrO2-WC composites processed by electrophoretic deposition

被引：19

作者：

Put, S ^{[1
]}

Anné, G ^{[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：

EURO CERAMICS VII, PT 1-3 | 2002年 / 206-2卷

关键词：

electrophoretic deposition (EPD); functionally graded materials (FGM); WC; ZrO2;

D O I：

10.4028/www.scientific.net/KEM.206-213.189

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：

This paper reports on the processing of homogeneous as well as graded ZrO2-WC composites by means of electrophoretic deposition. The EPD characteristics of the constituent powders, such as the point of zero charge, the natural pH and the electrophoretic mobility are experimentally determined and reported. The EPD processing parameters are described and the mechanical properties of the densified homogeneous and FGM composites are reported and evaluated. Moreover, the deposition yield in the FGM material is described as a function of time and starting composition of the suspensions, resulting in a model of the EPD process that allows to predict the composition gradient in the sintered material. The presented model enables to calculate the composition gradient in the ZrO2-WC FGM material from the starting composition of the suspensions, the EPD operating parameters and the powder-specific EPD characteristics.

引用

页码：189 / 192

页数：4

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