The rheology of collapsing zeolites amorphized by temperature and pressure

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dc.contributor.author Greaves, George
dc.contributor.author Meneau, F.
dc.contributor.author ap Gwynn, Iolo A.
dc.contributor.author Wade, S.
dc.date.accessioned 2008-12-09T16:58:43Z
dc.date.available 2008-12-09T16:58:43Z
dc.date.issued 2003-08-24
dc.identifier.citation Greaves , G , Meneau , F , ap Gwynn , I A & Wade , S 2003 , ' The rheology of collapsing zeolites amorphized by temperature and pressure ' Nature Materials , vol 2 , pp. 622-629 . en
dc.identifier.issn 1476-4660
dc.identifier.other PURE: 89707
dc.identifier.other dspace: 2160/1496
dc.identifier.uri http://hdl.handle.net/2160/1496
dc.description Greaves, G.; Meneau, F.; ap Gwynn, I.A.; Wade, S., (2003). The rheology of collapsing zeolites amorphized by temperature and pressure. Nature Materials 2, 622-629. RAE2008 en
dc.description.abstract Low-density zeolites collapse to the rigid amorphous state at temperatures that are well below the melting points of crystals of the same composition but of conventional density. Here we show, by using a range of experimental techniques, how the phenomenon of amorphization is time dependent, and how the dynamics of order–disorder transitions in zeolites under temperature and pressure are equivalent. As a result, thermobaric regions of instability can be charted, which are indicative of polyamorphism. Moreover, the boundaries of these zones depend on the rate at which temperature or pressure is ramped. By directly comparing the rheology of collapse with structural relaxation in equivalent melts, we conclude that zeolites amorphize like very strong liquids and, if compression occurs slowly, this is likely to lead to the synthesis of perfect glasses. en
dc.format.extent 8 en
dc.language.iso eng
dc.relation.ispartof Nature Materials en
dc.title The rheology of collapsing zeolites amorphized by temperature and pressure en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1038/nmat963
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.contributor.institution Mathematics and Physics en
dc.description.status Peer reviewed en


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