Effect of Porosity Gradient on Mechanical Properties of Cellular Nano-Composites

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dc.contributor.authorJančář, Josefcs
dc.contributor.authorZárybnická, Kláracs
dc.contributor.authorŽídek, Jancs
dc.contributor.authorKučera, Františekcs
dc.coverage.issue3cs
dc.coverage.volume12cs
dc.date.accessioned2021-01-29T15:57:35Z
dc.date.available2021-01-29T15:57:35Z
dc.date.issued2020-03-01cs
dc.description.abstractWith their hierarchical architectures incorporating gradients in composition, porosity, and orientation, natural materials have evolved optimized balance of mechanical properties. Deciphered from the structure of bamboo, we prepared cellular solids with convex and/or concave porosity gradient and investigated their static mechanical and impact properties. Non-monotonous porosity dependences of tensile, crush, and impact strength were related to the shape of porosity gradient rather than to the properties of the wall material alone. Our results provide experimental evidence, that novel mechanically robust low density additively fabricated cellular nano-composites with convex porosity gradient satisfy the structural requirements of lightweight engineering parts. Moreover, novel functions, such as reduced flammability or electrical conductivity, can easily be introduced by selecting the type and spatial organization of nanoparticles and cellular structure of the cellular micro-particles (CMPs).en
dc.formattextcs
dc.format.extent681-1-681-12cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationPolymers. 2020, vol. 12, issue 3, p. 681-1-681-12.en
dc.identifier.doi10.3390/polym12030681cs
dc.identifier.issn2073-4360cs
dc.identifier.other167275cs
dc.identifier.urihttp://hdl.handle.net/11012/195933
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofPolymerscs
dc.relation.urihttps://www.mdpi.com/2073-4360/12/3/681cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2073-4360/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectnano-compositesen
dc.subjectcellular materialsen
dc.subjectporosity gradienten
dc.subjectmechanical propertiesen
dc.titleEffect of Porosity Gradient on Mechanical Properties of Cellular Nano-Compositesen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-167275en
sync.item.dbtypeVAVen
sync.item.insts2021.01.29 16:57:35en
sync.item.modts2021.01.29 16:15:54en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie materiálůcs
thesis.grantorVysoké učení technické v Brně. Středoevropský technologický institut VUT. Pokročilé polymerní materiály a kompozitcs
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Ústav chemie materiálů
Pokročilé polymerní materiály a kompozit