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Neutron scattering studies of glassy and liquid ZnCl2

Kartini, E. and Collins, M.F. and Mezei, F. and Svensson, E.C. (1997) Neutron scattering studies of glassy and liquid ZnCl2. Physica B: Condensed Matter, 241-24. pp. 909-911. ISSN 09214526

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Neutron scattering measurements on ZnCl2 have been performed with both the DUALSPEC high-resolution powder diffractometer and triple-axis spectrometer at Chalk River Laboratories. The static structure factor S(Q) and the elastic structure factor S(Q, 0) are compared at temperatures between 300 and 680 K, spanning the glass, supercooled liquid and normal liquid phases. The temperature dependence of S(Q, 0) is more pronounced than that of S(Q, 0), showing that there is a large inelastic component in S(Q). The heights of the peaks in S(Q,0) and S(Q) exhibit a change in slope with temperature at Tg=375±5 K, the glass transition temperature. The faster decrease observed above Tg is caused by the onset of β-relaxation, as predicted by mode-coupling theory.

Item Type: Article
Subjects: Daur Bahan Bakar Nuklir dan Bahan Maju > Bahan Struktur dan Bahan Maju > Teknik Sintesis Bahan Maju
Divisions: Pusat Sains dan Teknologi Bahan Maju
Date Deposited: 01 Dec 2018 11:35
Last Modified: 01 Dec 2018 11:35
URI: http://repo-nkm.batan.go.id/id/eprint/7071

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