1998 / Solid Freeform Fabrication Proceedings
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Author Peter Stierlen (a), Peter Schanz (b), Peter Eyerer (a), (a) Inst. for Polymer Testing and Polymer Science, (b) DLR
Source Solid Freeform Fabrication Proceedings, 1998, pp 581-588
Abstract Actual RP-systems are very limited in producing adequate ceramic prototypes. In the presented process, the SiC-green part manufacturing by the laser sintering process in combination with special postprocessing allows the fast production of Si/SiC prototypes. A mixture of SiC powder and a reactive polymer binder system is used in the Laser Sinter process. In the following postprocessing the porous green part has to be infiltrated with a precursor resin, carbonised and finally infiltrated with molten silicon. In contrast to cold isostatic moulding or slip casting the shrinkage is very low (2-4 %). Experiments with suitable materials and process conditions were successful. This paper will show the state of and the possible further investigation into process. (Auth abstract) [References: 11]
Solid Freeform Fabrication Proceedings can be obtained from: The Solid Freeform Fabrication Symposium
or contact:
The University of Texas at Austin
Laboratory for Freeform Fabrication / Texas Materials Institute
Mechanical Engineering Dept.
c/o The Solid Freeform Fabrication Symposium
MC C2200
Austin, TX 78712-1063 USA
512-471-3026; 512-471-7681 FX; Email: sffsymp@uts.cc.utexas.edu