Paper Title:
Electrophoretic Deposition as Shaping Technique - A CAM Approach
  Abstract

Electrophoretic deposition (EPD) is a potential-enhanced technique for fabricating near-netshaped geometries. Its advantage is the independence of particle velocity from particle size so that optimum package densities are achieved by using powder mixtures. If the deposit is formed on a membrane that is located between the two electrodes, aqueous suspensions can be used because the formation of bubbles caused by the electrolytic decomposition of water and the deposition are separated in space. Combining EPD with a CAM system, any structure can be individually near-netshaped. In the present study, the geometry for an electrode for the use with a CAM system is theoretically developed by simulating the distribution of the electric field in EPD and finally fabricated in order to investigate its deposition properties. First of all, spot-wise deposits are fabricated on a membrane so that theoretical predictions and experimental results can be compared. Secondly, a translative motion of the electrode along the membrane is controlled by a CAM system. The so fabricated two-dimensional structures are rectangles and circles whereas the fineness as well as the structural integrity are investigated. This approach will be further developed in future to enable the fast fabrication of individual geometries with excellent green body properties.

  Info
Periodical
Edited by
P. VINCENZINI
Pages
714-719
DOI
10.4028/www.scientific.net/AST.45.714
Citation
J. Zeiner, A. Nold, R. Clasen, "Electrophoretic Deposition as Shaping Technique - A CAM Approach", Advances in Science and Technology, Vol. 45, pp. 714-719, 2006
Online since
October 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Alexander Nold, Johannes Zeiner, Rolf Clasen
Abstract:In this paper, the feasibility of obtaining well-defined compact EPD deposits in a short time was studied. EPD from organic and aqueous...
3
Authors: Hendrik C. Elsenheimer, Jan Tabellion, Florian Paul, Jürgen Haußelt
Abstract:The spatially distributed local electric field strength during the electrophoretic deposition (EPD) of alumina suspensions on a membrane is...
15
Authors: Rolf Clasen, Christian Oetzel
Abstract:The electrophoretic deposition (EPD) is a very promising process for shaping compacts, especially for nanopowders. Up till now EPD is not...
45
Authors: Alexander Nold, Thomas Assion, Johannes Zeiner, Rolf Clasen
Abstract:Shaping of structures is of growing importance so that innovative processes of fabrication are needed. In this sense, electrophoretic...
307