Diffusion of C in non-stoichiometric α-Mo2C was determined from the growth kinetics of the carbide layer. The results for 1273 to 1673K conformed to:

D(cm2/s) = 68.86 exp[-294.77(kJ/mol)/RT]

C.J.Rosa: Metallurgical Transactions A, 1983, 14[1], 199-202