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Mechanical properties of the elemental nanocomponents of nacre structure

Stempflé, Philippe and Pantalé, Olivier and Rousseau, Marthe and Lopez, Evelyne and Bourrat, Xavier Mechanical properties of the elemental nanocomponents of nacre structure. (2010) Materials Science and Engineering: C, vol. 30 (n° 5). pp. 715-721. ISSN 0928-4931

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Official URL: http://dx.doi.org/10.1016/j.msec.2010.03.003

Abstract

Sheet nacre is a nanocomposite with a multiscale structure displaying a lamellar “bricks and mortar” microarchitecture. In this latter, the brick refer to aragonite platelets and the mortar to a soft organic biopolymer. However, it appears that each brick is also a nanocomposite constituted as CaCO3 nanoparticles reinforced organic composite material. What is the role of this “intracrystalline” organic phase in the deformation of platelet? How does this nanostructure control the mechanical behaviour of sheet nacre at the macroscale? To answer these questions, the mechanical properties of each nanocomponents are successively investigated and computed using spherical and sharp nanoindentation tests combined with a structural model of the organomineral platelets built from AFM investigations.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Materials Science and Engineering: C website : http://www.sciencedirect.com/science/article/pii/S092849311000055X
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Ecole Nationale Supérieure de Mécanique et des Microtechniques - ENSMM (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Muséum national d'Histoire naturelle (FRANCE)
Other partners > Université Pierre et Marie Curie, Paris 6 - UPMC (FRANCE)
Other partners > Université de Franche-Comté (FRANCE)
Other partners > Université de Technologie de Belfort-Montbéliard - UTBM (FRANCE)
French research institutions > Bureau de recherches géologiques et minières - BRGM
Other partners > Université Henri Poincaré-Nancy1 - UHP (FRANCE)
Other partners > Université d'Orléans (FRANCE)
Laboratory name:
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Deposited By: Olivier Pantalé
Deposited On:24 Apr 2012 14:43

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