Abstract

BARRIOS DE ARENAS, Irene  and  REYES GASGA, José. Estudio de materiales compuestos de titanato de aluminio Al₂TiO₅ estabilizado con ilmenita FeTiO₃ y reforzado con Al₂O₃ y TiO₂. Rev. LatinAm. Metal. Mater. [online]. 2010, vol.30, n.2, pp.210-221. ISSN 0255-6952.

Due to its low expansion and thermal conductivity, as well as its high thermal shock resistance, aluminum titanate (Al₂TiO₅) is a material used as thermal barrier in diverse engineering components and interesting for some applications in combustion motor parts. However, this application is limited due to its low mechanical resistance and thermal stability below 1280°C. In this work, it has been studied aluminum titanate materials stabilized with pure and mineral processed Venezuelan ilmenite and reinforced with excess Al₂O₃ and TiO₂ obtained “in situ” by reactive sintering. X ray diffraction (XRD), scanning (SEM) and transmission electron microscopy (TEM) of the composite material has been performed in order to determine and correlate the structural effect of the ilmenite and reinforcements with the stability of aluminum titanate.

Keywords : Aluminum titanate; alumina; titania; ilmenite; reactive sintering; structural analysis.