3D Printing Bioinspired Ceramic Composites

Abstract Natural structural materials like bone and shell have complex, hierarchical architectures designed to control crack propagation and fracture. In modern composites there is a critical trade-off between strength and toughness. Natural structures provide blueprints to overcome this, however th...

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Autores principales:	Ezra Feilden, Claudio Ferraro, Qinghua Zhang, Esther García-Tuñón, Eleonora D’Elia, Finn Giuliani, Luc Vandeperre, Eduardo Saiz
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/64cf2f4833434d058c1d0ec62d01c426
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id	oai:doaj.org-article:64cf2f4833434d058c1d0ec62d01c426
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spelling	oai:doaj.org-article:64cf2f4833434d058c1d0ec62d01c4262021-12-02T11:53:12Z3D Printing Bioinspired Ceramic Composites10.1038/s41598-017-14236-92045-2322https://doaj.org/article/64cf2f4833434d058c1d0ec62d01c4262017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-14236-9https://doaj.org/toc/2045-2322Abstract Natural structural materials like bone and shell have complex, hierarchical architectures designed to control crack propagation and fracture. In modern composites there is a critical trade-off between strength and toughness. Natural structures provide blueprints to overcome this, however this approach introduces another trade-off between fine structural manipulation and manufacturing complex shapes in practical sizes and times. Here we show that robocasting can be used to build ceramic-based composite parts with a range of geometries, possessing microstructures unattainable by other production technologies. This is achieved by manipulating the rheology of ceramic pastes and the shear forces they experience during printing. To demonstrate the versatility of the approach we have fabricated highly mineralized composites with microscopic Bouligand structures that guide crack propagation and twisting in three dimensions, which we have followed using an original in-situ crack opening technique. In this way we can retain strength while enhancing toughness by using strategies taken from crustacean shells.Ezra FeildenClaudio FerraroQinghua ZhangEsther García-TuñónEleonora D’EliaFinn GiulianiLuc VandeperreEduardo SaizNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ezra Feilden Claudio Ferraro Qinghua Zhang Esther García-Tuñón Eleonora D’Elia Finn Giuliani Luc Vandeperre Eduardo Saiz 3D Printing Bioinspired Ceramic Composites
description	Abstract Natural structural materials like bone and shell have complex, hierarchical architectures designed to control crack propagation and fracture. In modern composites there is a critical trade-off between strength and toughness. Natural structures provide blueprints to overcome this, however this approach introduces another trade-off between fine structural manipulation and manufacturing complex shapes in practical sizes and times. Here we show that robocasting can be used to build ceramic-based composite parts with a range of geometries, possessing microstructures unattainable by other production technologies. This is achieved by manipulating the rheology of ceramic pastes and the shear forces they experience during printing. To demonstrate the versatility of the approach we have fabricated highly mineralized composites with microscopic Bouligand structures that guide crack propagation and twisting in three dimensions, which we have followed using an original in-situ crack opening technique. In this way we can retain strength while enhancing toughness by using strategies taken from crustacean shells.
format	article
author	Ezra Feilden Claudio Ferraro Qinghua Zhang Esther García-Tuñón Eleonora D’Elia Finn Giuliani Luc Vandeperre Eduardo Saiz
author_facet	Ezra Feilden Claudio Ferraro Qinghua Zhang Esther García-Tuñón Eleonora D’Elia Finn Giuliani Luc Vandeperre Eduardo Saiz
author_sort	Ezra Feilden
title	3D Printing Bioinspired Ceramic Composites
title_short	3D Printing Bioinspired Ceramic Composites
title_full	3D Printing Bioinspired Ceramic Composites
title_fullStr	3D Printing Bioinspired Ceramic Composites
title_full_unstemmed	3D Printing Bioinspired Ceramic Composites
title_sort	3d printing bioinspired ceramic composites
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/64cf2f4833434d058c1d0ec62d01c426
work_keys_str_mv	AT ezrafeilden 3dprintingbioinspiredceramiccomposites AT claudioferraro 3dprintingbioinspiredceramiccomposites AT qinghuazhang 3dprintingbioinspiredceramiccomposites AT esthergarciatunon 3dprintingbioinspiredceramiccomposites AT eleonoradelia 3dprintingbioinspiredceramiccomposites AT finngiuliani 3dprintingbioinspiredceramiccomposites AT lucvandeperre 3dprintingbioinspiredceramiccomposites AT eduardosaiz 3dprintingbioinspiredceramiccomposites
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3D Printing Bioinspired Ceramic Composites

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