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Title: Thick plate-shaped Al2O3/ZrO2 composites with continuous gradient processed by electrophoretic deposition
Authors: Vleugels, Jef ×
Anné, Guy
Put, Stijn
Van der Biest, Omer #
Issue Date: 2003
Publisher: Trans Tech Publications
Series Title: Materials Science Forum vol:423-425 pages:171-176
Abstract: This paper concerns the processing of free standing objects with a gradient composition. The possibility to shape 5 mm thick ZrO2-Al2O3 FGM discs by means of electrophoretic deposition (EPD) from suitable stable suspensions was explored. The EPD processing parameters and sintering schedules are described, and the densified FGM composites are evaluated. A mathematical model was established for the EPD process, allowing to calculate the composition gradient in plate-shaped FGM materials from the starting composition of the suspensions, the EPD operating parameters and the powder specific EPD characteristics. The model was essential to engineer the gradient profiles in the green deposits. Defect free Al2O3/ZrO2 FGM discs with a diameter of 55 mm, and a thickness of 5 mm could be successfully processed.
ISSN: 0255-5476
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physical Metallurgy and Materials Engineering Section (-)
Department of Materials Engineering - miscellaneous
× corresponding author
# (joint) last author

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