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Thermoplastic 3D printing - An additive manufacturing method for producing dense ceramics

 
: Scheithauer, Uwe; Schwarzer, Eric; Richter, Hans-Jürgen; Moritz, Tassilo

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International journal of applied ceramic technology 12 (2015), No.1, pp.26-31
ISSN: 1546-542X
ISSN: 1744-7402
English
Journal Article
Fraunhofer IKTS ()

Abstract
In our new approach-thermoplastic 3D printing-a high-filled ceramic suspension based on thermoplastic binder systems is used to produce dense ceramic components by additive manufacturing. Alumina (67 vol%) and zirconia (45 vol%) suspensions were prepared by ball milling at a temperature of about 100°C to adjust a low viscosity. After the preparation the suspension solidified at cooling. For the sintered samples (alumina at 1600°C, zirconia at 1500°C), a density of about99% and higher was obtained. FESEM studies of the samples' cross section showed a homogenous microstructure and a very good bond between the single printed layers.

: http://publica.fraunhofer.de/documents/N-324024.html