ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Extrusion gelation freeform fabrication process is an extrusion-based freeforming techniquecapable of fabricating complex shaped monolithic ceramic prototypes by the sequential deposition andsolidification of ceramic suspensions from a computer aided design model. In this process, ceramic partsare produced using an extrusion nozzle suitable for extruding ceramic suspensions. In this study, theprocessing parameters influencing on manufacturing Al2O3 parts were discussed. Air pressure on top ofsuspensions, rotating speed of screw, nozzle diameter and scan speed are the main factors to influence thedimensional precision of ceramic bodies. By optimizing these processing parameters, the green bodieswere fabricated with high precision. The sintered samples with homogenous microstructure and ~97.6%relative density could be prepared by sintering of these green bodies at 1600oC for 2 hours
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.704.pdf
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