The tracer diffusion of Ag in dense polycrystalline specimens was investigated by using radiotracer plus serial-sectioning techniques. It was found that the diffusivity of 110Ag at 500 and 600C, under 1atm of O (table 26), could be described by:
D (cm2/s) = 155 exp[-196(kJ/mol)/RT]
Y.Fang, J.L.Routbort: Journal of Applied Physics, 1994, 75[1], 210-5
Table 27
Diffusion of 18O in Bi2Sr2CuOx
Temperature (C) | Direction | D (cm2/s) |
250 | ab | 1.48 x 10-14 |
350 | ab | 5.29 x 10-13 |
450 | c | 1.44 x 10-16 |
550 | c | 6.04 x 10-15 |
650 | c | 2.36 x 10-13 |
700 | c | 8.16 x 10-13 |