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The unification of paste rheologies for the co-extrusion of solid oxide fuel cells

Lookup NU author(s): Dr Jon Powell

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Abstract

Current methods used to manufacture solid oxide fuel cells (SOFCs) involve multiple steps, applying successive layers to produce laminated components associated with repeated sintering steps. This work aims to cut the number of processing steps involved by co-extruding a complete SOFC tube from pastes in a single step, which is then co-sintered. Several aspects must be overcome in order to co-extrude such a fuel cell. Crucially the co-extrusion process requires that the theological properties of the materials are well matched. This prevents the formation of flow defects and allows for the continuous operation of the co-extrusion process. This work has investigated the manipulation of the rheological parameters through design of the paste formulation as well as the manufacturing process.

Publication metadata

Author(s): Powell J, Blackburn S

Publication type: Article

Publication status: Published

Journal: Journal of the European Ceramic Society

Year: 2009

Volume: 29

Issue: 5

Pages: 893-897

ISSN (print): 0955-2219

ISSN (electronic): 1873-619X

Publisher: Elsevier Ltd

URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2008.07.038

DOI: 10.1016/j.jeurceramsoc.2008.07.038

Notes: Article originally presented at: Third International Conference on Shaping of Advanced Ceramics (Shaping 3)

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