Robotic deposition of 3d nanocomposite and ceramic fiber architectures via UV curable colloidal inks

Autor:	Martin Trunec, Jiri Misak, Yoram de Hazan, Madlen Thänert
Rok vydání:	2012
Předmět:	Nanocomposite Materials science Nanoparticle Sintering visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Photocatalysis Deposition (phase transition) Ceramic Fiber Composite material Layer (electronics)
Zdroj:	Journal of the European Ceramic Society. 32:1187-1198
ISSN:	0955-2219
DOI:	10.1016/j.jeurceramsoc.2011.12.007
Popis:	A novel approach for producing predetermined, complex 3d ceramic architectures by robotic deposition where UV radiation is used for solidification is presented. Homogeneous, highly loaded, solvent free colloidal inks with controlled viscoelastic properties are achieved by proper selection of monomers and surfactants. Room temperature deposition of complex 3d fiber networks having filaments in the 100 μm range is demonstrated for Al 2 O 3 and hydroxyapatite model particles for structural and biomedical applications. Solidification of the structures by UV radiation allows additional shaping of the structures by post-printing processes such as cutting, folding and bonding. 2d and 3d architectures with high aspect ratios retain their shape and transform to macroscopic ceramics after thermal debinding and sintering procedures. Sintered alumina fiber networks functionalized with a 3–5 μm layer of TiO 2 nanoparticles exhibit photocatalytic activity for the decomposition of formaldehyde as a similar weight of loose powder, indicating possible applications in catalytic reactors prototypes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::adb7ccceb18e8aacdf66ced19f055da4 https://doi.org/10.1016/j.jeurceramsoc.2011.12.007 Zobrazit plný text záznamu Full Text from ScienceDirect