The self-diffusion of Li in molten and LiBeF3 was measured using the capillary reservoir technique with 6Li as a tracer. The concentration profiles of 6Li in a capillary were measured. The results were described by the Arrhenius equation,

D(m2/s)  = 1.12 x 10 -6 exp[-38.9(kJ/mol)/RT]

N.Iwamoto, Y.Tsunawaki, N.Umesaki, H.Ohno, K.Furukawa: Journal of the Chemical Society - Faraday Transactions 2, 1979, 75, 1277-83