Journal article

3D printing of clay for decorative architectural applications: Effect of solids volume fraction on rheology and printability

SSL Chan, RM Pennings, L Edwards, GV Franks

Additive Manufacturing | Elsevier | Published : 2020

Abstract

The effect of varying the solids volume fraction of an aqueous clay paste suspension on its printability via an Additive Manufacturing (AM) or 3D printing technique, Direct Ink Writing (DIW) or material extrusion, has been studied. DIW is a cost-effective and straightforward fabrication technology suitable for adoption at a larger scale by the traditional ceramics industry and the creative community. The pastes were prepared with volume fraction of solids ranging from 25–57 vol%. Their rheological properties (storage modulus and apparent yield stress) were measured by dynamic oscillatory rheometry. The relationships between solids content, rheological behaviour and print parameters were eval..

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Grants

Funding Acknowledgements

This research is supported by an Australian Government Research Training Program (RTP) Scholarship. The authors would also like to thank Liz Goodall (Materials Characterisation and Fabrication Platform, University of Melbourne) and Will Ng for their work on the XRD analysis. Thanks to Mitchell Sesso and Daniel Riley for their technical and project planning discussions.