The rheology of collapsing zeolites amorphised by temperature and pressure

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dc.contributor.author Colyer, L. M.
dc.contributor.author ap Gwynn, Iolo A.
dc.contributor.author Greaves, G. N.
dc.contributor.author Sapelkin, A.
dc.contributor.author Menau, F.
dc.contributor.author Wade, Stephen
dc.date.accessioned 2009-11-03T10:26:08Z
dc.date.available 2009-11-03T10:26:08Z
dc.date.issued 2009-11-03
dc.identifier.citation Colyer , L M , ap Gwynn , I A , Greaves , G N , Sapelkin , A , Menau , F & Wade , S 2009 , ' The rheology of collapsing zeolites amorphised by temperature and pressure ' Unknown Journal , pp. 622-629 . en
dc.identifier.other PURE: 148875
dc.identifier.other dspace: 2160/3398
dc.identifier.uri http://hdl.handle.net/2160/3398
dc.description Greaves, G. N., Menau, F., Sapelkin, A., Colyer, L. M., ap Gwynn, I., Wade, S. (2003). The rheology of collapsing zeolites amorphised by temperature and pressure   Nature Materials. Nature Publishing Group, 2, (9), 622-629. 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 Unknown Journal en
dc.title The rheology of collapsing zeolites amorphised by temperature and pressure en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.contributor.institution Institute of Mathematics & Physics (ADT) en
dc.description.status Peer reviewed en


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