The diffusive behavior of 95Nb was studied at 1600 to 2000C. The results could be described by:

D (cm2/s) = 2.82 x 101 exp[-113(kcal/g-atom)/RT]

V.D.Lyubimov, P.V.Geld, G.P.Shveikin, Y.A.Sutina: Izvestiya Akademii Nauk SSSR, 1967, 2, 84-7