The Influence of Ageing Process on the Barium Aluminate Phase CompositionA. O. Bezmaternykh, Y. B. Shvaljov, V. N. Kudiiarov, V. E. Gubin and M. N. BabihinaMATEC Web Conf., 72 (2016) 01012DOI: https://doi.org/10.1051/matecconf/20167201012