Auger methods were used to study the diffusion of P at 783 to 923K. The results could be described by:

D (cm2/s) = 8 x 105 exp[-314(kJ/mol)/RT]

G.Luckman, R.A.Didio, W.R.Graham: Metallurgical Transactions A, 1981, 12[2], 253-7