Diffraction, structure and phase stability studies on aluminium titanate

Reaction sintering of colloidal processed mixtures of sub-micrometric alumina and nano-titania

“…High-temperature studies of the b-Al 2 TiO 5 crystalline structure revealed an increasing substitution of Al for the Ti atoms in the crystal in the temperature range 900-1280 8C. As signalled by Skala et al [18], the increase in the occupancy of the Al atoms and the temperature range over which it occurred may indicate that these are ''pre-transformation'' or preeutectoid changes at the atomic scale that may enhance subsequent eutectoid decomposition on cooling.…”

“…Recent studies propose the atomic diffusion as controlling mechanism [15,18]. High-temperature studies of the b-Al 2 TiO 5 crystalline structure revealed an increasing substitution of Al for the Ti atoms in the crystal in the temperature range 900-1280 8C.…”

“…Another factor that has been proposed as determinant of the thermal behaviour of b-Al 2 TiO 5 is the complex system of internal stresses and fractures that may develop in the material during cooling from elevated temperatures, resulting from the thermal expansion mismatch between individual grains [13,18,19]. Aluminium titanate formation is expansive and, therefore, particles under a compressive stresses will be more prone to decomposition.…”

Microstructural Characterization and Thermal Properties of Aluminium Titanate/YSZ Ceramics

“…Other important applications include thermocouple sleeves, burner nozzles and it is widely used as refractory crucibles for metal casting and ow regulation [9,11].…”

Enhanced properties of alumina–aluminium titanate composites obtained by spark plasma reaction-sintering of slip cast green bodies

“…These properties make it to be a promising candidate material for service conditions involving thermal shock resistance and good thermal insulation, such as thermal processing technology, metallurgy, glass industry, automotive industry, refractory, engine components and thermal barriers, etc. [1,3,4]. Also, AT is a suitable additive as a second phase that can improve the thermal and mechanical properties of ceramic matrix composites [5].…”