Table 2 Thermodynamic characterization parameters(1).
Evaluation parameters | ∆G1 | ∆G2 | ∆G3 | ∆T1 | ∆T2 | ∆T3 | TS | TI | |
---|---|---|---|---|---|---|---|---|---|
Unit | % | % | % | ℃ | ℃ | ℃ | ℃ | ℃ | |
Passivation degree | Indicator | - | - | + | - | - | + | + | + |
3%—2 h | B2 | 3.22 | 14.76 | 14.77 | 30.14 | 98.21 | 66.94 | 198.30 | 159.97 |
3%—4 h | B4 | 3.17 | 13.26 | 13.26 | 35.97 | 97.20 | 69.46 | 202.38 | 159.20 |
3%—6 h | B6 | 2.70 | 23.69 | 23.68 | 34.49 | 98.24 | 62.57 | 195.93 | 148.62 |
3%—8 h | B8 | 5.55 | 11.57 | 11.57 | 32.78 | 97.73 | 56.40 | 200.57 | 142.48 |
6%—2 h | C2 | 2.91 | 14.25 | 14.25 | 30.16 | 95.13 | 71.65 | 200.37 | 157.14 |
6%—4 h | C4 | 1.42 | 15.47 | 15.47 | 32.80 | 96.38 | 71.42 | 200.38 | 155.44 |
6%—6 h | C6 | 1.41 | 15.54 | 15.54 | 31.43 | 95.14 | 70.87 | 199.51 | 155.82 |
6%—8 h | C8 | 0.98 | 12.89 | 12.89 | 28.99 | 92.90 | 65.91 | 198.53 | 155.65 |
9%—2 h | D2 | 2.55 | 26.43 | 26.43 | 26.06 | 91.74 | 86.70 | 200.32 | 148.02 |
9%—4 h | D4 | 1.16 | 21.69 | 21.69 | 30.34 | 85.32 | 87.21 | 204.70 | 158.30 |
9%—6 h | D6 | 0.72 | 21.86 | 21.86 | 43.70 | 77.47 | 90.70 | 207.90 | 154.40 |
9%—8 h | D8 | 0.92 | 19.53 | 19.53 | 48.90 | 44.42 | 92.80 | 203.33 | 149.27 |