Freeze-form extrusion fabrication of ceramic parts

A novel, environmentally friendly solid freeform fabrication method called freeze-form extrusion fabrication (FEF) has been developed for the fabrication of ceramic-based components. The method is based on deposition of ceramic pastes using water as the media. The ceramic solids loading can be 50 vo...

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Bibliographic Details
Published inVirtual and physical prototyping Vol. 1; no. 2; pp. 93 - 100
Main Authors Huang, Tieshu, Mason, Michael S., Hilmas, Gregory E., Leu, Ming C.
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 01.06.2006
Subjects
Alumina
Aqueous
Ceramic
Extrusion
Free-form
Freeze
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Summary:A novel, environmentally friendly solid freeform fabrication method called freeze-form extrusion fabrication (FEF) has been developed for the fabrication of ceramic-based components. The method is based on deposition of ceramic pastes using water as the media. The ceramic solids loading can be 50 vol.% or higher and initial studies have focused on the use of aluminum oxide (Al 2 O 3 ). The FEF system components and their interaction are examined, and the main process parameters affecting part geometry defined. Three-dimensional shaped components have been fabricated by extrusion deposition of the ceramic paste in a layer-by-layer fashion. The feasibility of this process has been demonstrated by building components having a simple geometry, such as cylinders and solid or hollow cones. Hollow cones have also been fabricated to demonstrate the ability to build structures with sloped walls.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1745-2759
1745-2767
DOI:10.1080/17452750600649609