Electron-probe X-ray spectrum analysis techniques were used to study the diffusion zone between oxide couples with NiO or ZnO. The latter were irradiated, in the interdiffusion direction, with 8MeV electrons at a flux density of 5 x 10-5A/cm2. The temperatures used were 1000C for the ZnO-containing couple and 1100C for the NiO-containing couple. The diffusion coefficients which were deduced from the Fe distribution in Fe2O3-ZnO pairs ranged from 5 x 10-9 to 2 x 10-8cm2/s for both oxides. The diffusion coefficients which were deduced from the Zn distribution in Fe2O3-ZnO pairs ranged from 5 x 10-9 to 2 x 10-8 cm2/s for ZnO and from 5 x 10-9 to 4 x 10-8cm2/s for Fe2O3. The diffusion coefficients, as a function of concentration, ranged from 10-9 to 2 x 10-9 cm2/s (for Fe in either oxide), from 10-9 to 2 x 10-9cm2/s (for Ni in NiO), and from 10-9 to 5 x 10-9cm2/s (for Ni in Fe2O3). It was found that the coefficients for metal ion diffusion under irradiation were 2 to 3 times higher than the equivalent values in the absence of irradiation.

V.V.Grishaev, A.P.Erastova, B.M.Lebed, J.G.Saksonov, G.J.Fedorova: Izvestiya Akademii Nauk SSSR - Neorganicheskie Materialy, 1988, 24[11], 1957-60. (Inorganic Materials, 1988, 24[11], 1586-8)