A Non-Hydrolytic Sol-Gel Approach for the Preparation of Mg_xAl_(2(1-x)Ti_(1+x)O_5 Powders

摘要

The study of non-hydrolytic reactions for the synthesis of Mg_xAl_(2(1-x))Ti_(1+x)O_5 solid solution with x=0.6 is reported.The reagents chosen were Al(OsBu)_3,Ti(OiPr)_4,TiCl_4 and Mg(NO_3)_2centre dot6H_2O in toluene.The reactions were followed using ~(13)C Nuclear Magnetic Resonance (NMR) spectroscopy.Sol-gel synthesized powders were calcined in air at 300,500,1000,and 1200degC for 1 h.The powders were analysed by X-Ray Diffraction (XRD) demonstrating the formation of a Mg_(0.6)Al_(0.8)Ti_(1.6)O_5 phase in samples treated at the higher calcination temperature.