The impurity diffusion of 46Sc in CoO was measured in air by using the tracer-sectioning technique. The results, at 1004 to 1500C, could be described by:
D (cm2/s) = 4.62 x 10-4 exp[-37.28(kcal/mol)]
Cation Impurity Diffusion in CoO and NiO. K.Hoshino, N.L.Peterson: Journal of Physics and Chemistry of Solids, 1984, 45[8-9], 963-72
Table 63
O Tracer Diffusion in CoO
Temperature (K) | PO2(Pa) | D (m2/s) |
1273 | 21.3 | 2.20 x 10-19 |
1298 | 21.3 | 1.67 x 10-19 |
1323 | 81.1 | 4.51 x 10-19 |
1408 | 21.3 | 1.98 x 10-18 |
1473 | 21.3 | 5.35 x 10-18 |
1516 | 21.3 | 1.32 x 10-17 |
1573 | 21.3 | 2.94 x 10-17 |