|Number of page(s)||5|
|Published online||04 December 2009|
Structural exploration on powder diffraction a nice tool for rexamination of phase diagramM.H. Chambrier and F. Goutenoire
Université du Maine, Laboratoire des Oxydes et Fluorures UMR6010, Av. O. Messiaen, Le Mans, 72000, France
Published online: 4 December 2009
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