Conformable green bodies: plastic forming of robocasted advanced ceramics
File(s)Elizarova Vandeperre Saiz AcceptedManuscript.docx (2.28 MB)
Accepted version
Author(s)
Elizarova, Iulliia
Vandeperre, Luc
Saiz Gutierrez, Eduardo
Type
Journal Article
Abstract
Robocasting, or the additive manufacturing of ceramics by continuous extrusion of a ceramic paste, has limited capabilities when printing complex unsupported structures such as overhangs or free standing thin artefacts. In this paper we address this limitation using a new type of paste, which allows for shaping of the green bodies after printing. To illustrate the flexibility of the paste, it was used to produce both alumina and silicon carbide parts. The paste consists of a solution of phenolic resin in methyl ethyl ketone and ceramic powders. Fabricated parts can be cut, bent, folded and draped over various objects. Once dry and fully solid, the parts become rigid and can be processed further by slow pyrolysis and sintering. Sintered samples exhibit flexural strength comparable to both conventionally produced and robocasted ceramics and shaping of the green bodies after printing does not affect the mechanical strength of the sintered parts.
Date Issued
2020-02-01
Date Acceptance
2019-10-04
Citation
Journal of the European Ceramic Society, 2020, 40 (2), pp.552-557
ISSN
0955-2219
Publisher
Elsevier
Start Page
552
End Page
557
Journal / Book Title
Journal of the European Ceramic Society
Volume
40
Issue
2
Copyright Statement
© 2019 Elsevier Inc. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor
Engineering & Physical Science Research Council (E
Grant Number
146280 MAPP - EP/P006566/1
Subjects
0912 Materials Engineering
Materials
Publication Status
Published
Date Publish Online
2019-10-12