Fracture toughness and strength of Al2O3-Y3Al5O12 and Al2O3-Y3Al5O12-ZrO2 directionally solidified eutectic oxides up to 1900 K - Pastor, J. Y.; LLorca, J.; Martin, A.; Pena, J. J.; Oliete, P. B.; (Journal Of The European Ceramic Society, 2008)