Title of article
Crystal structure of Na2HfSi2O7 by Rietveld refinement
Author/Authors
Massonia, Nicolas CEA, DEN, DTCD, Marcoule, BP17171, F-30207 Bagnols sur Ceze, France , Chevreuxa, Pierrick CEA, DEN, DTCD, Marcoule, BP17171, F-30207 Bagnols sur Ceze, France
Pages
8
From page
1
To page
8
Abstract
The structure of triclinic disodium hafnium disilicate, Na2HfSi2O7, has been determined by laboratory powder X-ray diffraction and refined by the Rietveld refinement. The structure is a framework made of alternate layers of HfO6 octahedra and SiO4 tetrahedra linked by common O atoms. Sodium atoms are located in the voids of the framework, aligned into tunnels along the [010] direction. Na2HfSi2O7 is isostructural with the parakeldyshite Na2ZrSi2O7 phase.
Keywords
crystal structure , sodium hafnium disilicate , powder diffraction
Journal title
Acta Crystallographica Section E: Crystallographic Communications
Serial Year
2016
Record number
2618909
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