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ECN publication
Title:
Advanced forming techniques in ceramics
 
Author(s):
 
Published by: Publication date:
ECN 1-5-2000
 
ECN report number: Document type:
ECN-RX--00-003 Article (scientific)
 
Number of pages:
18  

Published in: Contribution to the Polish Ceramics 2000 conference, Spala, May 29-31, 2000 (), , , Vol., p.-.

Abstract:
Improvement in powder processing and forming technologies is the way toimprove the reliability of advanced ceramics and lower their cost. Therefore, a lot of effort is put into the development of low cost technologies for high volumes of complex-shaped components that will have the ability to form complex-shaped thin-walled parts. The near-net-shape forming of advanced ceramics are receiving the most interest. The following forming processes are actually in the stage of commercialisation or development: pressure slip casting, freeze casting, powder injection moulding, tape casting/lamination, rapid prototyping, and colloidal processing of powders. Especially the techniques based on the colloidal processing such as gelcasting, electrophoretic casting, hydrolysis assisted solidification, and direct coagulation casting are receiving much interest due to an ability to reduce the size of critical defects originating from the manufacturing process. Specific manufacturing features, advantages, disadvantages and limitation of these novel processes are described in detail in this paper. 41 refs.


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