Table 1: Influence of material treatment mode on the physical and mechanical properties.
| Material | Ni | YSZ-NiO | ||||||||||
| Mode marking | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| Mode | Preconditioning | As-received | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | Processing in 99.99 vol% H2 at 600 ℃ for 4 h | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | As-received | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | Processing in 99.99 vol% H2 at 600 ℃ for 4 h | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | Processing in Ar-5 vol% H2 at 600 ℃ for 4 h | |
| Aging | - | - | Aging in Ar-5 vol% H2 with 7 vol% H2S at 600 ℃ for 4 h | Aging in Ar-5 vol% H2 with 18 vol% H2S at 600 ℃ for 4 h | - | - | Aging in Ar-5 vol% H2 with 7 vol% H2S at 600 ℃ for 4 h | Aging in Ar-5 vol% H2 with 18 vol% H2S at 600 ℃ for 4 h | ||||
| Mean values of the characteristics | σf/σf0 (%) | 100 | 21.1 | 13.9 | 21.7 | 23.3 | 100 | 86 | 105 | 82 | 61 | |
| E/E0 (%) | 100 | 76 | 59 | 76 | 77 | 100 | 82 | 62 | 76 | 75 | ||
| σ (S/m) | at 600 ℃ | 1.1•107 | 1.1•107 | 1.1•107 | 1.1•107 | 1.1•107 | (*) | (5.5-6.0)•104 | (1.4-1.7)•105 | (5.5-6.0)•104 | (5.5-6.0)•104 | |
| at 20 ℃ | 1.4•107 | 1.4•107 | 1.4•107 | 1.4•107 | 1.4•107 | (*) | (5.5-6.5)•105 | (2.1-2.7)•106 | (5.5-6.5)•105 | (5.5-6.5)•105 | ||
Comment: (*) Electrical conductivity is absent.