Table 1. Diffusion Coefficients (/10–10 m2 s–1) and Activation Energies Calculated for the Nine Systems Studied in This Work Having a Dopant Concentration of 12.5% and from the Literature Corresponding to Experimental (Dopant Concentrations of 10% and 20%)1,8 and Simulated Values (Dopant Concentrations of 0.46% and 12.5%)16,17.
| system | diffusion @500 K | diffusion @750 K | diffusion @1000 K | activation energies (kJ mol–1) |
|---|---|---|---|---|
| YU | 2.60 | 6.51 | 35.96 | 20.4 |
| YC | 3.79 | 24.10 | 22.67 | 16.0 |
| YP | 2.19 | 16.26 | 26.29 | 21.3 |
| ref 1 | 0.11 | 3.19 | 16.81 | 41.3 |
| ref 8 | 0.07 | 1.16 | 3.30 | 16 (> approximately 1000 K) |
| 45 (< 1000 K) | ||||
| 13.0 (T1 measurements) | ||||
| ref 16 | 0.05 | 1.31 | 6.63 | 40.5 |
| ref 17 | 0.01 | 0.26 | 1.49 | 43.4 |