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Origin of the Potential Drop Over the Deposit During Electrophoretic Deposition
Author(s) -
Anné G.,
Neirinck B.,
Vanmeensel K.,
Biest O.,
Vleugels J.
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2005.00817.x
Subject(s) - electrophoretic deposition , drop (telecommunication) , electrophoresis , deposition (geology) , chemistry , mineralogy , voltage drop , chemical engineering , analytical chemistry (journal) , coating , chromatography , thermodynamics , geology , current (fluid) , organic chemistry , telecommunications , paleontology , sediment , computer science , engineering , physics
A model is developed to explain the origin of the potential drop over the deposit during electrophoretic deposition (EPD). The magnitude of the potential drop over the deposit is explained in terms of the ion transport through the deposit, as controlled by the pore potential that is related to the thickness of the electrostatic double layer relative to the pore radius and the magnitude of the surface potential of the powder particles. This model is verified for EPD of Al 2 O 3 powder in ethanol‐based suspensions with HNO 3 as a function of the operational pH.