Lanthanum titanate (La2Ti2O7) as an interphase material in alumina (Al2O3) based composites

CEYLAN A., Fuierer P.

Proceedings of the 8th Conference and Exhibition of the European Ceramic Society, İstanbul, Turkey, 29 June - 03 July 2003, vol.264-268, pp.829-832 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 264-268
  • City: İstanbul
  • Country: Turkey
  • Page Numbers: pp.829-832
  • Keywords: Alumina, Aluminum titanate, Laminate composites, Lanthanum titanate
  • Anadolu University Affiliated: Yes


The aim of this research is to fabricate and characterize alumina (Al 2O3) / lanthanum titanate (La2Ti 2O7) laminate ceramic composites. The interfacial bond between oxide laminates has a critical effect on the final mechanical properties (ie. fracture toughness) of composites. Hot forged Al2O3 and La2Ti2O7 laminated composites were prepared and then characterized by X-ray diffraction (XRD), optical microscopy, scanning electron microscopy, energy dispersive X-ray spectroscopy (EDS) and wavelength dispersive X-ray spectroscopy (WDS). An intermediate phase was found to form at the interface was identified as Al2TiO5.