The diffusivity was equal to 4 x 10-8cm2/s at 1173K. A low value (0.77eV) of the associated activation energy, and the absence of any dependence of the coefficient upon the ambient Cd vapour-pressure, suggested that an interstitial mechanism was operating.

O.E.Panchuk, R.N.Fesh, A.V.Savitski, L.P.Shcherbak: Izvestiya Akademii Nauk SSSR – Neorganicheskie Materialy, 1981, 17[8], 1354-6