Title: Cylindrical Al2O3/TZP functionally graded materials by EPD
Authors: Zhao, Chao ×
Vandeperre, Luc
Vleugels, Jef
Van der Biest, Omer #
Issue Date: 2000
Publisher: Institute of Materials
Series Title: British Ceramic Transactions vol:99 issue:6 pages:284-287
Abstract: 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.
ISSN: 0967-9782
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
× corresponding author
# (joint) last author

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