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Nanoengineering mechanically robust aerogels via control of foam morphology

Kucheyev, S. O.; Baumann, T. F.; Cox, C. A.; Wang, Y. M.; Satcher, J. H.; Hamza, A. V.; Bradby, J. E.

Description

Potential of aerogels for technological applications is often limited by their poor mechanical properties. Here, we demonstrate that alumina aerogel monoliths with excellent mechanical properties can be made by controlling the crystallographic phase, shape, and size of nanoligaments. In particular, we show that thermal processing of aerogels with a morphology of interconnected nanoleaflets causes dehydration and associated curling of the nanoleaflets, resulting in a dramatic improvement of...[Show more]

dc.contributor.authorKucheyev, S. O.
dc.contributor.authorBaumann, T. F.
dc.contributor.authorCox, C. A.
dc.contributor.authorWang, Y. M.
dc.contributor.authorSatcher, J. H.
dc.contributor.authorHamza, A. V.
dc.contributor.authorBradby, J. E.
dc.date.accessioned2015-11-04T05:02:51Z
dc.date.available2015-11-04T05:02:51Z
dc.identifier.issn0003-6951
dc.identifier.urihttp://hdl.handle.net/1885/16334
dc.description.abstractPotential of aerogels for technological applications is often limited by their poor mechanical properties. Here, we demonstrate that alumina aerogel monoliths with excellent mechanical properties can be made by controlling the crystallographic phase, shape, and size of nanoligaments. In particular, we show that thermal processing of aerogels with a morphology of interconnected nanoleaflets causes dehydration and associated curling of the nanoleaflets, resulting in a dramatic improvement of mechanical properties. This study shows an effective way to control mechanical properties of the nanoporous solids that can be synthesized with ligaments having a quasi-two-dimensional shape, such as platelets, ribbons, or leaflets.
dc.description.sponsorshipWork at the ANU was supported by the ARC.
dc.publisherAmerican Institute of Physics (AIP)
dc.rightshttp://www.sherpa.ac.uk/romeo/issn/0003-6951..."Publishers version/PDF may be used on author's personal website, institutional website or institutional repository" from SHERPA/RoMEO site (as at 3/11/15). Copyright 2006 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters and may be found at https://doi.org/10.1063/1.2236222
dc.sourceApplied Physics Letters
dc.subjectKeywords: Nanoligaments; Nanoporous solids; Platelets; Quasi-two-dimensional shape; Alumina; Crystallography; Foams; Nanotechnology; Synthesis (chemical); Aerogels
dc.titleNanoengineering mechanically robust aerogels via control of foam morphology
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume89
dc.date.issued2006-07-26
local.identifier.absfor100799
local.identifier.ariespublicationU4047546xPUB33
local.publisher.urlhttps://www.aip.org/
local.type.statusPublished Version
local.contributor.affiliationKucheyev, Sergei O, Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationBaumann, T F , Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationCox, C A , Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationWang, Y M , Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationSatcher, J H , Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationHamza, A V, Lawrence Livermore National Laboratory, United States of America
local.contributor.affiliationBradby, Jodie, College of Physical and Mathematical Sciences, CPMS Research School of Physics and Engineering, Department of Electronic Materials Engineering, The Australian National University
local.bibliographicCitation.issue4
local.bibliographicCitation.startpage041911
local.identifier.doi10.1063/1.2236222
dc.date.updated2015-12-08T03:28:20Z
local.identifier.scopusID2-s2.0-33746651162
CollectionsANU Research Publications

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