Manufacturing of Ceramic Dental Components by Means of Electro-Phoretic Deposition

Oetzel, Christian; Tabellion, Jan; Clasen, Rolf

doi:10.1002/9780470291191.ch85

Cited by 2 publications

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“…An application in medical engineering is given in Ref. [12] where dental crowns are fabricated via EPD according to membrane method. For this application, the combination of high green density and homogeneous density distribution make EPD superior to other shaping methods such a s slip casting.…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic Deposition as Shaping Technique - A CAM Approach

Zeiner

Nold

Clasen

2006

Advances in Science and Technology

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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.

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Section: Introductionmentioning

confidence: 99%

Electrophoretic Deposition as Shaping Technique - A CAM Approach

Zeiner

Nold

Clasen

2006

Advances in Science and Technology

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Fabrication of nanosized 3Y-TZP ceramic dental restoration frameworks on gypsum models by aqueous electrophoretic deposition

Jin¹,

Wang²,

Wang³

et al. 2008

Advances in Applied Ceramics

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The feasibility of using electrophoretic deposition (EPD) as a technique to form nanosized zirconia dental restoration frameworks was evaluated and optimised. By using constant low temperature ultrasonic agitation and magnetic stirring, a 3Y-TZP nanopowder suspension with 75 wt-% solid content was obtained as the EPD starting suspension. High density [80% theoretical density (TD)] nanosized 3Y-TZP green bodies were fabricated by aqueous EPD with an input voltage of 30-40 V. High density (99?9%TD) pure nanosized 3Y-TZP ceramic dental restoration frameworks were successfully achieved after 3 h of sintering at 1280uC. The crystalline structure of the framework was pure tetragonal phase zirconia, and the microstructure was very homogeneous with an average grain size of 230 nm. These results suggest that pure nanozirconia dental restoration frameworks could be near shape manufactured by aqueous EPD.

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Manufacturing of Ceramic Dental Components by Means of Electro-Phoretic Deposition

Cited by 2 publications

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Electrophoretic Deposition as Shaping Technique - A CAM Approach

Electrophoretic Deposition as Shaping Technique - A CAM Approach

Fabrication of nanosized 3Y-TZP ceramic dental restoration frameworks on gypsum models by aqueous electrophoretic deposition

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