Anodic Coagulation Casting (ACC) of fibrinogenic nano-sized (median diameter ≤ 1 µm) alumina suspensions is a novel processing technology to green form complex 2D and 3D ceramic shapes, which has not been reported so far. This technology is based on the electrically induced transformation from the soluble fibrinogen into the insoluble fibrin to immobilize ceramic particles. Contrary to the direct coagulation casting (DCC) technology, green formation does not require a pH-shift, further, as the fibrin coagulate forms on an anode it can be combined with the electrophoretic deposition (EPD) technology.
The deposition thickness ranging from a few micrometers to several millimetres and the porosity of the precipitate were controlled by the applied voltage, ranging from 1.0 V to 4.0 V and the processing-time lasting from 1 minute to 2 hours. The selection of the established green bodies via ACC-technology included two-dimensional and simple three-dimensional shapes, as well as multilayered precipitates.
The deposited ceramic was characterized using SEM and Synchrotron µ-CT, while the coagulation mechanism was studied using HPLC (high pressure liquid chromatography), SDS-gel-chromatography and ATR/FTIR.

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