Table 2 Dielectric constant ε′ for doped YBCO ceramic samples at 50 Hz and 1 MHz at 120°C
From: YBCO as a transition metal oxide ceramic material for energy storage
Sample | Mn3O4 | Co3O4 | Cr2O3 | |||
|---|---|---|---|---|---|---|
YBCO + x | 50 Hz | 1 MHz | 50 Hz | 1 MHz | 50 Hz | 1 MHz |
X = 0.1 | 1.34 × 105 | 9.24 | 7.86 × 104 | 5.34 × 101 | 5.93 × 105 | 3.53 × 103 |
X = 0.2 | 3.26 × 104 | 8.98 | 4.42 × 106 | 8.16 × 102 | 7.27 × 105 | 3.10 × 103 |
X = 0.3 | 1.16 × 106 | 9.25 × 102 | 2.15 × 105 | 6.01 × 101 | 5.43 × 105 | 2.50 × 103 |
X = 0.4 | 7.04 × 105 | 1.95 × 103 | 3.66 × 104 | 2.24 × 101 | 9.45 × 102 | 2.07 × 101 |
X = 0.5 | 1.50 × 105 | 4.96 × 102 | 1.38 × 105 | 3.31 × 101 | 8.23 × 104 | 2.70 × 101 |