Table 1 Dielectric constant ε′ for doped YBCO ceramic samples at 50 Hz and 1MHz at room temperature
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 | 9.45 × 104 | 1.55 × 101 | 4.02 × 104 | 2.23 × 101 | 1.13 × 106 | 8.38 × 103 |
X = 0.2 | 1.17 × 104 | 1.33 × 101 | 3.83 × 105 | 5.25 × 101 | 6.54 × 105 | 3.85 × 103 |
X = 0.3 | 1.36 × 106 | 2.51 × 103 | 3.01 × 103 | 4.54 × 101 | 1.23 × 106 | 1.05 × 104 |
X = 0.4 | 2.14 × 105 | 4.76 × 102 | 3.35 × 103 | 3.98 × 101 | 6.21 × 102 | 2.37 × 101 |
X = 0.5 | 7.95 × 104 | 5.50 × 102 | 1.03 × 105 | 7.98 × 101 | 5.92 × 105 | 5.09 × 101 |