Cylindrical Al2O3/TZP functionally graded materials by EPD

被引：13

作者：

Zhao, C ^{[1
]}

Vandeperre, L ^{[1
]}

Vleugels, J ^{[1
]}

Van Der Biest, O ^{[1
]}

机构：

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

来源：

BRITISH CERAMIC TRANSACTIONS | 2000年 / 99卷 / 06期

关键词：

D O I：

10.1179/096797800681018

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：

Cylindrical Al2O3/Ce-TZP functionally graded composites were fabricated by electrophoretic deposition and pressureless sintering in air. Negatively charged Ce-TZP and Al2O3 powders were deposited on a cylindrical electrode from an acetone based suspension. A continuous composition change is realised by changing the composition of the suspension. Sintering of the FGM at different temperatures, showed that a temperature higher than 1550 degreesC was necessary for densification. The resultant FGM cylinder with 5.6 mm dia. had an ideal mechanical structure: a central open channel, a tough Ce-ZrO2 core (K-Ic > 10 MPa m(1/2)). a continuous gradient interlayer, and a hard surface layer with HV higher than 15 GPa. BCT/443.

引用

页码：284 / 287

页数：4