Publication Details (including relevant citation information):
Jardiel, Teresa, Calatayud, David G., Rodríguez, Mónica, Fernández-Hevia, Daniel, Caballero, Amador C. Materials Letters 2013 94 58-60
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 ºC.