Lanthanum titanate (La2Ti2O7) as an interphase material in alumina (Al2O3) based composites
EURO CERAMICS VIII, PTS 1-3, vol.264-268, pp.829-832, 2004 (SCI-Expanded)
- Publication Type: Article / Article
- Volume: 264-268
- Publication Date: 2004
- Doi Number: 10.4028/www.scientific.net/kem.264-268.829
- Journal Name: EURO CERAMICS VIII, PTS 1-3
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
- Page Numbers: pp.829-832
- Keywords: alumina, aluminum titanate, lanthanum titanate, laminate composites
- Anadolu University Affiliated: No
Abstract
The aim of this research is to fabricate and characterize alumina (Al2O3) / lanthanum titanate (La2Ti2O7) 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 Al2O5.