Title: A mathematical description of the kinetics of the electrophoretic deposition process for Al2O3-based suspensions
Authors: AnnĂ©, Guy ×
Vanmeensel, Kim
Vleugels, Jef
Van der Biest, Omer #
Issue Date: Aug-2005
Publisher: American Ceramic Society
Series Title: Journal of the American Ceramic Society vol:88 issue:8 pages:2036-2039
Abstract: The yield during electrophoretic deposition is modeled incorporating the changing electric field over the suspension, due to a potential drop over the growing deposit, assessed from on-line measurements of the current flowing through the deposition cell and the conductivity of the suspension during electrophoretic deposition. The kinetic model is validated for Al2O3 suspensions with different powder loads based on methylethylketone with n-butylamine and ethanol with polyethyleneimine or HNO3, suspensions with, respectively, a constant and a decreasing electric field during deposition. The need for a powder concentration correction, even at volume fractions down to 0.03, and the incorporation of a changing electric field is experimentally proven to be essential in order to describe the deposition yield more accurately than predicted from the Hamaker equation.
ISSN: 0002-7820
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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