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Issue JEEP 2009
2009
Article Number 00022
Number of page(s) 5
DOI http://dx.doi.org/10.1051/jeep/200900022
Published online 04 December 2009

JEEP 2009, 00022 (2009)
DOI: 10.1051/jeep/200900022

Structural exploration on powder diffraction a nice tool for rexamination of phase diagram

M.H. Chambrier and F. Goutenoire

Université du Maine, Laboratoire des Oxydes et Fluorures UMR6010, Av. O. Messiaen, Le Mans, 72000, France

Marie-helene.chambrier.etu@univ-lemans.fr

Published online: 4 December 2009

Abstract
The aim of this work is the structural exploration of the La2O3-WO3 phase diagram. Indeed, like many phase diagrams La2O3-WO3 was built in the 70s, but definite compounds structures were not determined and are still unknown. In the present contribution, we focus on La6W2O15, La2WO6 and La14W8O45. These compounds are synthesized as powder by solid state reaction and characterized by X-ray powder diffraction, gravimetric and differential thermal analysis.


Key words: Phase diagram -- X-ray diffraction -- structural determination


© Owned by the authors, published by EDP Sciences 2009


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