Phase Stability and Mechanisms of Transformation of La-Doped γ-Alumina.

We report the phase stability of cubic γ-AlO with respect to lanthanum dopant amount and describe a complete phase transition sequence up to a temperature of 1800 °C, which proceeds from La-doped γ-AlO to LaAlO/γ-AlO to LaAlO. For this purpose, lanthanum contents from 0.81 to 10.