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dc.contributor.authorStrag, Martyna
dc.contributor.authorCheca González, Antonio G.
dc.identifier.citationStrąg, M., Maj, Ł., Bieda, M., Petrzak, P., Jarzębska, A., Gluch, J., ... & Berent, K. (2020). Anisotropy of mechanical properties of Pinctada margaritifera mollusk shell. Nanomaterials, 10(4), 634. [doi:10.3390/nano10040634]es_ES
dc.descriptionThe research was co-financed by the European Union from the resources of the European Social Fund (Project No.WND-POWR.03.02.00-00-I043/16), the DAAD program. A.C. acknowledges project CGL2017-85118-P of the Spanish Ministerio de Ciencia e Innovaciónfor funding.es_ES
dc.description.abstractThe mechanical properties such as compressive strength and nanohardness were investigated for Pinctada margaritifera mollusk shells. The compressive strength was evaluated through a uniaxial static compression test performed along the load directions parallel and perpendicular to the shell axis, respectively, while the hardness and Young modulus were measured using nanoindentation. In order to observe the crack propagation, for the first time for such material, the in-situ X-ray microscopy (nano-XCT) imaging (together with 3D reconstruction based on the acquired images) during the indentation tests was performed. The results were compared with these obtained during the micro-indentation test done with the help of conventional Vickers indenter and subsequent scanning electron microscopy observations. The results revealed that the cracks formed during the indentation start to propagate in the calcite prism until they reach a ductile organic matrix where most of them are stopped. The obtained results confirm a strong anisotropy of both crack propagation and the mechanical strength caused by the formation of the prismatic structure in the outer layer of P. margaritifera shell.es_ES
dc.description.sponsorshipThe research was co-financed by the European Union from resources of the European Social Fund (Project No.WND-POWR.03.02.00-00-I043/16).es_ES
dc.rightsAtribución 3.0 España*
dc.subjectMollusk shellses_ES
dc.subjectBivalves es_ES
dc.subjectElectron microscopy es_ES
dc.subjectMechanical propertieses_ES
dc.titleAnisotropy of Mechanical Properties of Pinctada margaritifera Mollusk Shelles_ES

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Atribución 3.0 España
Except where otherwise noted, this item's license is described as Atribución 3.0 España