Paper Title:
Influence of Processing Parameters on Manufacturing Al2O3 Parts by Extrusion Gelation Freeform Fabrication
  Abstract

Extrusion gelation freeform fabrication process is an extrusion-based freeforming technique capable of fabricating complex shaped monolithic ceramic prototypes by the sequential deposition and solidification of ceramic suspensions from a computer aided design model. In this process, ceramic parts are produced using an extrusion nozzle suitable for extruding ceramic suspensions. In this study, the processing parameters influencing on manufacturing Al2O3 parts were discussed. Air pressure on top of suspensions, rotating speed of screw, nozzle diameter and scan speed are the main factors to influence the dimensional precision of ceramic bodies. By optimizing these processing parameters, the green bodies were 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.

  Info
Periodical
Key Engineering Materials (Volumes 368-372)
Edited by
Wei Pan and Jianghong Gong
Pages
704-706
DOI
10.4028/www.scientific.net/KEM.368-372.704
Citation
Z. Y. Yu, H. X. Liu, M. H. Cao, S. X. Ouyang, Y. Huang, "Influence of Processing Parameters on Manufacturing Al2O3 Parts by Extrusion Gelation Freeform Fabrication", Key Engineering Materials, Vols. 368-372, pp. 704-706, 2008
Online since
February 2008
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Price
$32.00
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