A carbon-nanofiber glass composite with high electrical conductivity

Simple item page
dc.contributor.authorTao, G.
dc.contributor.authorChen, S.
dc.contributor.authorPandey, S.J.
dc.contributor.authorTan, F.A.
dc.contributor.authorEbendorff-Heidepriem, H.
dc.contributor.authorMolinari, M.
dc.contributor.authorAbouraddy, A.F.
dc.contributor.authorGaume, R.M.
dc.date.issued2020
dc.descriptionThis article also appears in: International Congress on Glass 2019 Collection.
dc.description.abstractThe use of oxide glasses is pervasive throughout everyday amenities and commodities. Such glasses are typically electrical insulators, and endowing them with electrical conductivity—without changing their salutary mechanical properties, weight, or thermoformability—enables new applications in multifunctional utensils, smart windows, and automotive parts. Previous strategies to impart electrical conductivity include modifying the glass composition or forming a solid‐in‐solid composite of the glass and a conductive phase. Here, we demonstrate—using the latter strategy—the highest reported room‐temperature electrical conductivity in a bulk oxide glass (~1800 S/m) corresponding to the theoretical limit for the loading fraction of the conductive phase. This is achieved through glass sintering of a mixture of carbon nanofibers (CNFs) and oxide flint (F2) or soda‐lime glasses, with the bulk conductivity further enhanced by a polyethylene‐block‐poly(ethylene glycol) additive. A theoretical model provides predictions that are in excellent agreement with the dependence of conductivity of these composites on the carbon‐loading fraction. Moreover, nanoscale electrical characterization of the composite samples provides evidence for the existence of a connected network of CNFs throughout the bulk. Our results establish a potentially low‐cost approach for producing large volumes of highly conductive glass independently of the glass composition.
dc.description.statementofresponsibilityGuangming Tao, Shi Chen, Sudeep J. Pandey, Felix A. Tan, Heike Ebendorff- Heidepriem, Michael Molinari, Ayman F. Abouraddy, Romain M. Gaume
dc.identifier.citationInternational Journal of Applied Glass Science, 2020; 11(3):590-600
dc.identifier.doi10.1111/ijag.14607
dc.identifier.issn2041-1286
dc.identifier.issn2041-1294
dc.identifier.orcidEbendorff-Heidepriem, H. [0000-0002-4877-7770]
dc.identifier.urihttp://hdl.handle.net/2440/123909
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/CE140100003
dc.relation.granthttp://purl.org/au-research/grants/arc/DP170104367
dc.rights© 2019 The American Ceramic Society and Wiley Periodicals, Inc
dc.source.urihttps://doi.org/10.1111/ijag.14607
dc.subjectConductivity; modeling; oxide; properties
dc.titleA carbon-nanofiber glass composite with high electrical conductivity
dc.typeJournal article
pubs.publication-statusPublished

Files

Collections

IPAS publications