Multimaterial magnetically assisted 3D printing of composite materials

Dimitri Kokkinis, Manuel Schaffner and André R. Studart ()
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Dimitri Kokkinis: Complex Materials, ETH Zürich
Manuel Schaffner: Complex Materials, ETH Zürich
André R. Studart: Complex Materials, ETH Zürich

Nature Communications, 2015, vol. 6, issue 1, 1-10

Abstract: Abstract 3D printing has become commonplace for the manufacturing of objects with unusual geometries. Recent developments that enabled printing of multiple materials indicate that the technology can potentially offer a much wider design space beyond unusual shaping. Here we show that a new dimension in this design space can be exploited through the control of the orientation of anisotropic particles used as building blocks during a direct ink-writing process. Particle orientation control is demonstrated by applying low magnetic fields on deposited inks pre-loaded with magnetized stiff platelets. Multimaterial dispensers and a two-component mixing unit provide additional control over the local composition of the printed material. The five-dimensional design space covered by the proposed multimaterial magnetically assisted 3D printing platform (MM-3D printing) opens the way towards the manufacturing of functional heterogeneous materials with exquisite microstructural features thus far only accessible by biological materials grown in nature.

Date: 2015
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DOI: 10.1038/ncomms9643

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