The migration of 32P in polycrystalline samples was studied at 1200 to 1450K. The diffusivity was found to be described by:

D (cm2/s) = 2.45 x 10-2 exp[-49.8(kcal/mol)/RT]

B.A.Vandychev, A.S.Panov: Izvestiya Akademii Nauk SSSR, 1970, 2, 231-4