The self-diffusion of 99Mo was studied by using a radiometric method. The results for 1170 to 1270K could be described by:

D (cm2/s) = 0.0014 exp[-199.8(kJ/mol)/RT]

A.J.Neiman, A.S.Kalyakin, A.F.Guseva: Izvestiya Akademii Nauk SSSR Neorganicheskie Materialy, 1990, 26[8], 1728-33. [Inorganic Materials, 1990, 26[8], 1474-81