Lattice diffusion coefficients of oxygen ions in antifluorite-cubic Li2O were determined using polycrystalline samples at 920 to 1130C, by means of the gas-solid isotope exchange and solid-phase analysis technique; The results were

described by:

D(cm2/s) = 1.52 x 103 exp[-83300/RT]

K.Ando, M.Akiyama, Y.Oishi: Journal of Nuclear Materials, 1980, 95[3], 259-64