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20 August 2009 Characterization of additive influence on reaction sintering of nano aluminum titanate
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Formation and characteristic comparing of Aluminium titanate (AT) was achieved through solid-state and sol-gel processes. In the sol-gel process controlling of the nano-sized particles was followed by addition of a polymeric coherent agent in the transparent sol. In the present work 2wt% Magnesia and 4wt% zirconium mullite were added as the additives to the samples for sintering acceleration of Aluminium Titanate and also AT properties were optimized at low temperature. XRD analysis was confirmed the formation of about 90% nano-sized AT at 1400°C without addition of MgO in the sol-gel process. The influence of Mg and Zr addition and heat treatment of the precursors were studied on phase formation and microstructure development in Aluminum Titanate in both procedures. Studies of calcined powders containing additives at 1300-1350°C show the significant increasing of AT formation and the sintering was done very optimally as well. The Formation of AT phase, sintering characteristics and microstructure features were reported.
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M. Khosravi Saghezchi, M. Biazar Markie, R. Ajami, and H. Sarpoolaky "Characterization of additive influence on reaction sintering of nano aluminum titanate", Proc. SPIE 7402, Nanoengineering: Fabrication, Properties, Optics, and Devices VI, 74020T (20 August 2009);

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