Tough metal-ceramic composites with multifunctional nacre-like architecture

Abstract The brick-and-mortar architecture of biological nacre has inspired the development of synthetic composites with enhanced fracture toughness and multiple functionalities. While the use of metals as the “mortar” phase is an attractive option to maximize fracture toughness of bulk composites,...

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Autores principales:	Erik Poloni, Florian Bouville, Christopher H. Dreimol, Tobias P. Niebel, Thomas Weber, Andrea R. Biedermann, Ann M. Hirt, André R. Studart
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/aa77ca52c8dd4b06b4dfeae4f0d95509
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spelling	oai:doaj.org-article:aa77ca52c8dd4b06b4dfeae4f0d955092021-12-02T15:23:07ZTough metal-ceramic composites with multifunctional nacre-like architecture10.1038/s41598-021-81068-z2045-2322https://doaj.org/article/aa77ca52c8dd4b06b4dfeae4f0d955092021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81068-zhttps://doaj.org/toc/2045-2322Abstract The brick-and-mortar architecture of biological nacre has inspired the development of synthetic composites with enhanced fracture toughness and multiple functionalities. While the use of metals as the “mortar” phase is an attractive option to maximize fracture toughness of bulk composites, non-mechanical functionalities potentially enabled by the presence of a metal in the structure remain relatively limited and unexplored. Using iron as the mortar phase, we develop and investigate nacre-like composites with high fracture toughness and stiffness combined with unique magnetic, electrical and thermal functionalities. Such metal-ceramic composites are prepared through the sol–gel deposition of iron-based coatings on alumina platelets and the magnetically-driven assembly of the pre-coated platelets into nacre-like architectures, followed by pressure-assisted densification at 1450 °C. With the help of state-of-the-art characterization techniques, we show that this processing route leads to lightweight inorganic structures that display outstanding fracture resistance, show noticeable magnetization and are amenable to fast induction heating. Materials with this set of properties might find use in transport, aerospace and robotic applications that require weight minimization combined with magnetic, electrical or thermal functionalities.Erik PoloniFlorian BouvilleChristopher H. DreimolTobias P. NiebelThomas WeberAndrea R. BiedermannAnn M. HirtAndré R. StudartNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Erik Poloni Florian Bouville Christopher H. Dreimol Tobias P. Niebel Thomas Weber Andrea R. Biedermann Ann M. Hirt André R. Studart Tough metal-ceramic composites with multifunctional nacre-like architecture
description	Abstract The brick-and-mortar architecture of biological nacre has inspired the development of synthetic composites with enhanced fracture toughness and multiple functionalities. While the use of metals as the “mortar” phase is an attractive option to maximize fracture toughness of bulk composites, non-mechanical functionalities potentially enabled by the presence of a metal in the structure remain relatively limited and unexplored. Using iron as the mortar phase, we develop and investigate nacre-like composites with high fracture toughness and stiffness combined with unique magnetic, electrical and thermal functionalities. Such metal-ceramic composites are prepared through the sol–gel deposition of iron-based coatings on alumina platelets and the magnetically-driven assembly of the pre-coated platelets into nacre-like architectures, followed by pressure-assisted densification at 1450 °C. With the help of state-of-the-art characterization techniques, we show that this processing route leads to lightweight inorganic structures that display outstanding fracture resistance, show noticeable magnetization and are amenable to fast induction heating. Materials with this set of properties might find use in transport, aerospace and robotic applications that require weight minimization combined with magnetic, electrical or thermal functionalities.
format	article
author	Erik Poloni Florian Bouville Christopher H. Dreimol Tobias P. Niebel Thomas Weber Andrea R. Biedermann Ann M. Hirt André R. Studart
author_facet	Erik Poloni Florian Bouville Christopher H. Dreimol Tobias P. Niebel Thomas Weber Andrea R. Biedermann Ann M. Hirt André R. Studart
author_sort	Erik Poloni
title	Tough metal-ceramic composites with multifunctional nacre-like architecture
title_short	Tough metal-ceramic composites with multifunctional nacre-like architecture
title_full	Tough metal-ceramic composites with multifunctional nacre-like architecture
title_fullStr	Tough metal-ceramic composites with multifunctional nacre-like architecture
title_full_unstemmed	Tough metal-ceramic composites with multifunctional nacre-like architecture
title_sort	tough metal-ceramic composites with multifunctional nacre-like architecture
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/aa77ca52c8dd4b06b4dfeae4f0d95509
work_keys_str_mv	AT erikpoloni toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT florianbouville toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT christopherhdreimol toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT tobiaspniebel toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT thomasweber toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT andrearbiedermann toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT annmhirt toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture AT andrerstudart toughmetalceramiccompositeswithmultifunctionalnacrelikearchitecture
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Tough metal-ceramic composites with multifunctional nacre-like architecture

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