The impurity diffusion of 54Mn in NiO was measured in air by using the tracer-sectioning technique. The results, at 1000 to 1501C, could be described by:

D (cm2/s) = 7.67 x 10-4 exp[-45.02(kcal/mol)]

K.Hoshino, N.L.Peterson: Journal of Physics and Chemistry of Solids, 1984, 45[8-9], 963-72