Damage-tolerant 3D-printed ceramics via conformal coating

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dc.citation.articleNumbereabc5028en_US
dc.citation.issueNumber28en_US
dc.citation.journalTitleScience Advancesen_US
dc.citation.volumeNumber7en_US
dc.contributor.authorSajadi, Seyed Mohammaden_US
dc.contributor.authorVásárhelyi, Líviaen_US
dc.contributor.authorMousavi, Rezaen_US
dc.contributor.authorRahmati, Amir Hosseinen_US
dc.contributor.authorKónya, Zoltánen_US
dc.contributor.authorKukovecz, Ákosen_US
dc.contributor.authorArif, Taiben_US
dc.contributor.authorFilleter, Tobinen_US
dc.contributor.authorVajtai, Roberten_US
dc.contributor.authorBoul, Peteren_US
dc.contributor.authorPang, Zhenqianen_US
dc.contributor.authorLi, Tengen_US
dc.contributor.authorTiwary, Chandra Sekharen_US
dc.contributor.authorRahman, Muhammad M.en_US
dc.contributor.authorAjayan, Pulickel M.en_US
dc.date.accessioned2021-07-30T15:21:19Zen_US
dc.date.available2021-07-30T15:21:19Zen_US
dc.date.issued2021en_US
dc.description.abstractCeramic materials, despite their high strength and modulus, are limited in many structural applications due to inherent brittleness and low toughness. Nevertheless, ceramic-based structures, in nature, overcome this limitation using bottom-up complex hierarchical assembly of hard ceramic and soft polymer, where ceramics are packaged with tiny fraction of polymers in an internalized fashion. Here, we propose a far simpler approach of entirely externalizing the soft phase via conformal polymer coating over architected ceramic structures, leading to damage tolerance. Architected structures are printed using silica-filled preceramic polymer, pyrolyzed to stabilize the ceramic scaffolds, and then dip-coated conformally with a thin, flexible epoxy polymer. The polymer-coated architected structures show multifold improvement in compressive strength and toughness while resisting catastrophic failure through a considerable delay of the damage propagation. This surface modification approach allows a simple strategy to build complex ceramic parts that are far more damage-tolerant than their traditional counterparts. Conformal polymer coating leads to damage-tolerant architected ceramic structures with high strength and toughness. Conformal polymer coating leads to damage-tolerant architected ceramic structures with high strength and toughness.en_US
dc.identifier.citationSajadi, Seyed Mohammad, Vásárhelyi, Lívia, Mousavi, Reza, et al.. "Damage-tolerant 3D-printed ceramics via conformal coating." <i>Science Advances,</i> 7, no. 28 (2021) AAAS: https://doi.org/10.1126/sciadv.abc5028.en_US
dc.identifier.digitaleabc5028-fullen_US
dc.identifier.doihttps://doi.org/10.1126/sciadv.abc5028en_US
dc.identifier.urihttps://hdl.handle.net/1911/111044en_US
dc.language.isoengen_US
dc.publisherAAASen_US
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/en_US
dc.titleDamage-tolerant 3D-printed ceramics via conformal coatingen_US
dc.typeJournal articleen_US
dc.type.dcmiTexten_US
dc.type.publicationpublisher versionen_US
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