Properties and role of interfaces in multimaterial 3D printed composites

Abstract In polyjet printing photopolymer droplets are deposited on a build tray, leveled off by a roller and cured by UV light. This technique is attractive to fabricate heterogeneous architectures combining compliant and stiff constituents. Considering the layer-by-layer nature, interfaces between...

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Autores principales:	Laura Zorzetto, Luca Andena, Francesco Briatico-Vangosa, Lorenzo De Noni, Jean-Michel Thomassin, Christine Jérôme, Quentin Grossman, Anne Mertens, Richard Weinkamer, Marta Rink, Davide Ruffoni
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3d583ce7be204bf8848c960ac4979b5f
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spelling	oai:doaj.org-article:3d583ce7be204bf8848c960ac4979b5f2021-12-02T13:34:01ZProperties and role of interfaces in multimaterial 3D printed composites10.1038/s41598-020-79230-02045-2322https://doaj.org/article/3d583ce7be204bf8848c960ac4979b5f2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-79230-0https://doaj.org/toc/2045-2322Abstract In polyjet printing photopolymer droplets are deposited on a build tray, leveled off by a roller and cured by UV light. This technique is attractive to fabricate heterogeneous architectures combining compliant and stiff constituents. Considering the layer-by-layer nature, interfaces between different photopolymers can be formed either before or after UV curing. We analyzed the properties of interfaces in 3D printed composites combining experiments with computer simulations. To investigate photopolymer blending, we characterized the mechanical properties of the so-called digital materials, obtained by mixing compliant and stiff voxels according to different volume fractions. We then used nanoindentation to measure the spatial variation in mechanical properties across bimaterial interfaces at the micrometer level. Finally, to characterize the impact of finite-size interfaces, we fabricated and tested composites having compliant and stiff layers alternating along different directions. We found that interfaces formed by deposition after curing were sharp whereas those formed before curing showed blending of the two materials over a length scale bigger than individual droplet size. We found structural and functional differences of the layered composites depending on the printing orientation and corresponding interface characteristics, which influenced deformation mechanisms. With the wide dissemination of 3D printing techniques, our results should be considered in the development of architectured materials with tailored interfaces between building blocks.Laura ZorzettoLuca AndenaFrancesco Briatico-VangosaLorenzo De NoniJean-Michel ThomassinChristine JérômeQuentin GrossmanAnne MertensRichard WeinkamerMarta RinkDavide RuffoniNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-17 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Laura Zorzetto Luca Andena Francesco Briatico-Vangosa Lorenzo De Noni Jean-Michel Thomassin Christine Jérôme Quentin Grossman Anne Mertens Richard Weinkamer Marta Rink Davide Ruffoni Properties and role of interfaces in multimaterial 3D printed composites
description	Abstract In polyjet printing photopolymer droplets are deposited on a build tray, leveled off by a roller and cured by UV light. This technique is attractive to fabricate heterogeneous architectures combining compliant and stiff constituents. Considering the layer-by-layer nature, interfaces between different photopolymers can be formed either before or after UV curing. We analyzed the properties of interfaces in 3D printed composites combining experiments with computer simulations. To investigate photopolymer blending, we characterized the mechanical properties of the so-called digital materials, obtained by mixing compliant and stiff voxels according to different volume fractions. We then used nanoindentation to measure the spatial variation in mechanical properties across bimaterial interfaces at the micrometer level. Finally, to characterize the impact of finite-size interfaces, we fabricated and tested composites having compliant and stiff layers alternating along different directions. We found that interfaces formed by deposition after curing were sharp whereas those formed before curing showed blending of the two materials over a length scale bigger than individual droplet size. We found structural and functional differences of the layered composites depending on the printing orientation and corresponding interface characteristics, which influenced deformation mechanisms. With the wide dissemination of 3D printing techniques, our results should be considered in the development of architectured materials with tailored interfaces between building blocks.
format	article
author	Laura Zorzetto Luca Andena Francesco Briatico-Vangosa Lorenzo De Noni Jean-Michel Thomassin Christine Jérôme Quentin Grossman Anne Mertens Richard Weinkamer Marta Rink Davide Ruffoni
author_facet	Laura Zorzetto Luca Andena Francesco Briatico-Vangosa Lorenzo De Noni Jean-Michel Thomassin Christine Jérôme Quentin Grossman Anne Mertens Richard Weinkamer Marta Rink Davide Ruffoni
author_sort	Laura Zorzetto
title	Properties and role of interfaces in multimaterial 3D printed composites
title_short	Properties and role of interfaces in multimaterial 3D printed composites
title_full	Properties and role of interfaces in multimaterial 3D printed composites
title_fullStr	Properties and role of interfaces in multimaterial 3D printed composites
title_full_unstemmed	Properties and role of interfaces in multimaterial 3D printed composites
title_sort	properties and role of interfaces in multimaterial 3d printed composites
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/3d583ce7be204bf8848c960ac4979b5f
work_keys_str_mv	AT laurazorzetto propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT lucaandena propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT francescobriaticovangosa propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT lorenzodenoni propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT jeanmichelthomassin propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT christinejerome propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT quentingrossman propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT annemertens propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT richardweinkamer propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT martarink propertiesandroleofinterfacesinmultimaterial3dprintedcomposites AT davideruffoni propertiesandroleofinterfacesinmultimaterial3dprintedcomposites
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Properties and role of interfaces in multimaterial 3D printed composites

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