Octahedra's packing in bulk amorphous tungsten oxides

Autor:	S. Laruelle, M. Figlarz, B. Bouchet-Fabre
Rok vydání:	1995
Předmět:	Chemistry Scattering chemistry.chemical_element Mineralogy Tungsten Condensed Matter Physics Radial distribution function Electronic Optical and Magnetic Materials Amorphous solid Grinding Crystallography Octahedron Metastability Materials Chemistry Ceramics and Composites Hydrate
Zdroj:	Journal of Non-Crystalline Solids. :116-120
ISSN:	0022-3093
DOI:	10.1016/0022-3093(95)00434-3
Popis:	The local and medium range order in amorphous tungsten oxides has been investigated by anomalous wide-angle X-ray scattering (AWAXS). Amorphous phases have been prepared for the first time by non-reactive grinding, from both WO3 pyrochlore-type structure which is metastable, and WO3 · 1H2O hydrate. The AWAXS study is based on measurements performed at the L2 W edge. A differential analysis has been carried out with the extraction of both the oxygen and the tungsten environment. Through a comparison of the partial structure factors for both phases and the original crystalline phases, conclusions are drawn concerning the octahedra's packing and the role of ‘water’ bonding in amorphous tungsten oxides.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::62ac961fde9aa05727a49fb172498a70 https://doi.org/10.1016/0022-3093(95)00434-3 Zobrazit plný text záznamu Full Text from ScienceDirect