BELL, Anthony M. T. and HENDERSON, C. Michael B. (2012). High-temperature synchrotron X-ray powder diffraction study of Cs2XSi5O12 (X = Cd, Cu, Zn) leucites. Mineralogical Magazine, 76 (5), 1257-1280.Full text not available from this repository.
Synchrotron X-ray powder diffraction data have been collected on three synthetic leucite analogues with the general formula Cs2XSi5O12 (X = Cd, Cu, Zn) between 295 and 1173 K. All three samples have the orthorhombic Pbca leucite structure at room temperature with ordered framework T-site cations. The sample with X = Cd retains the Pbca structure over the whole of the investigated temperature range. The sample with X = Cu also retains the Pbca structure, but there is a transition to a less distorted structure with a larger unit-cell volume at ~333 K. The sample with X = Zn shows evidence for a transition to a previously unknown Pa3¯ cubic structure, with some T-site cation disorder, at 566 K, on heating. This transition is reversible on cooling to 633 K.
|Additional Information:||Collaboration with the University of Manchester done when I worked on the DORIS-III synchrotron at the Deutsches Elektronen-Synchrotron (DESY) laboratory in Hamburg, Germany.|
|Depositing User:||Anthony Bell|
|Date Deposited:||09 Aug 2016 11:48|
|Last Modified:||09 Aug 2016 11:48|
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