Repository logo
 
Publication

Nature of the supercritical mesophase

dc.contributor.authorMagnier, Hamza J.
dc.contributor.authorCurtis, Robin A.
dc.contributor.authorWoodcock, Leslie
dc.date.accessioned2021-02-03T16:46:37Z
dc.date.available2021-02-03T16:46:37Z
dc.date.issued2014-06
dc.description.abstractIt has been reported that at temperatures above the critical there is no “continuity of liquid and gas”, as originally hypothesized by van der Waals [1]. Rather, both gas and liquid phases, with characteristic properties as such, extend to supercritical temperatures [2]-[4]. Each phase is bounded by the locus of a percolation transition, i.e. a higher-order thermodynamic phase change associated with percolation of gas clusters in a large void, or liquid interstitial vacancies in a large cluster. Between these two-phase bounds, it is reported there exists a mesophase that resembles an otherwise homogeneous dispersion of gas micro-bubbles in liquid (foam) and a dispersion of liquid micro-droplets in gas (mist). Such a colloidal-like state of a pure one-component fluid represents a hitherto unchartered equilibrium state of matter besides pure solid, liquid or gas. Here we provide compelling evidence, from molecular dynamics (MD) simulations, for the existence of this supercritical mesophase and its colloidal nature. We report preliminary results of computer simulations for a model fluid using a simplistic representation of atoms or molecules, i.e. a hard-core repulsion with an attraction so short that the atoms are referred to as “adhesive spheres”. Molecular clusters, and hence percolation transitions, are unambiguously defined. Graphics of color-coded clusters show colloidal characteristics of the supercritical mesophase. We append this Letter to Natural Science with a debate on the scientific merits of its content courtesy of correspondence with Nature (Appendix)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.4236/ns.2014.610078pt_PT
dc.identifier.issn2150-4091
dc.identifier.urihttp://hdl.handle.net/10400.1/15032
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherScientific Research Publishingpt_PT
dc.relation.publisherversionhttps://www.scirp.org/journal/paperinformation.aspx?paperid=47085pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectSupercritical mesophasept_PT
dc.subjectAdhesive-spherept_PT
dc.subjectCriticalitypt_PT
dc.subjectLiquid-gaspt_PT
dc.titleNature of the supercritical mesophasept_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage807pt_PT
oaire.citation.issue10pt_PT
oaire.citation.startPage797pt_PT
oaire.citation.titleNatural Sciencept_PT
oaire.citation.volume6pt_PT
person.familyNameWoodcock
person.givenNameLeslie
person.identifier.orcid0000-0003-2350-559X
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublicationb550a18f-b4d3-4d68-8b8d-84f3373024aa
relation.isAuthorOfPublication.latestForDiscoveryb550a18f-b4d3-4d68-8b8d-84f3373024aa

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
NS_Nature-2014.pdf
Size:
1.28 MB
Format:
Adobe Portable Document Format