|Title:||Synthesis of metastable Bi6Ti5WO22 phase by the mechanochemical method||Authors:||Jardiel, Teresa
Calatayud, David G.
Caballero, Amador C.
|UNESCO Clasification:||23 Química||Keywords:||Mechanosynthesis
|Issue Date:||2013||Journal:||Materials Letters||Abstract:||Mechanochemical processing has been demonstrated as a powerful tool for preparing metastable phases. In this work we have successfully applied it to synthesize a novel Bi6Ti5WO22 phase belonging to the Bi2O3-TiO2-WO3 ternary system. Attempts to obtain this phase by a solid state reaction method as well as by chemical precipitation have failed, confirming that cubic Bi6Ti5WO22 shows a metastable nature. The employ of high-energy milling allows a reduction in both the calcination temperature and time required to obtain a crystalline sample (thereby reducing the Bi-losses by vaporization). As a consequence a pure Bi6Ti5WO22 phase has been prepared which remains stable up to temperatures around 800 degrees C.||URI:||http://hdl.handle.net/10553/75793||ISSN:||0167-577X||DOI:||10.1016/j.matlet.2012.12.016||Source:||Materials Letters [ISSN 0167-577X], v. 94, p. 58-60, (Marzo 2013)|
|Appears in Collections:||Artículos|
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