The diffusivity at 1173K was found to be 4 x 10-8cm2/s. The 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 the operation of an interstitial mechanism.

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