Table 8.
Rp values obtained for the different coatings prepared with different ratios of TEOS.
| Samples | Number of Layers | Day 1 | Before Cl− Addition (Day 7) | After Cl− Addition (Day 9) | Day 16 |
|---|---|---|---|---|---|
| (Ω·cm2) × 103 | (Ω·cm2) × 103 | (Ω·cm2) × 103 | (Ω·cm2) × 103 | ||
| Control | 0.649 ± 0.188 | 0.023 ± 0.007 | 0.008 ± 0.002 | 0.009 ± 0.003 | |
| U(600) | |||||
| 1:4.16:0 | 1 | 0.238 ± 0.042 | 21.5 ± 3.8 | 32.1 ± 5.6 | 153 ± 27 |
| 1:4.16:3.45 | 1 | 16.4 ± 4.8 | 14.6 ± 4.2 | 14.6 ± 5.3 | 0.024 ± 0.007 |
| 1:4.16:3.45 | 3 | 2.94 ± 0.53 | 32.6 ± 5.9 | 0.018 ±0.003 | 73.2 ± 13.2 |
| U(900) | |||||
| 1:4.16:0 | 1 | 3.67 ± 0.64 | 314 ± 55 | 0.040 ± 0.007 | 0.044 ± 0.008 |
| 1:4.16:3.45 | 1 | 0.004 ± 0.001 | 141 ± 21 | 354 ± 53.1 | 118 ± 18 |
| 1:4.16:3.45 | 3 | 0.192 ± 0.052 | 37.3 ± 10.1 | 0.035 ± 0.009 | 0.129 ± 0.035 |
| U(2000) | |||||
| 1:4.16:0 | 1 | 31.8 ± 0.5 | 12.1 ± 1.82 | 0.389 ± 0.058 | 0.424 ± 0.064 |
| 1:4.16:3.45 | 1 | 0.120 ± 0.033 | 5.78 ± 1.58 | 13.7 ± 3.8 | 257 ± 71 |
| 1:4.16:3.45 | 3 | 0.489 ± 0.134 | 145 ± 40 | 0.018 ± 0.005 | 0.557 ± 0.153 |