Table 1 Physical and electrical properties of (1-x)BNKT-x BST ceramics sintered at 1,125°C
From: Investigation of a new lead-free Bi0.5(Na0.40K0.10)TiO3-(Ba0.7Sr0.3)TiO3 piezoelectric ceramic
x | Density (g/cm3) | c/a | Grain size (μm) | T c (°C) | ε r a | tanδa | P r (μC/cm2) | E c (kV/cm) | R sq | d 33 (pC/N) |
|---|---|---|---|---|---|---|---|---|---|---|
0 | 5.81 ± 0.01 | 1.0083 | 0.60 ± 0.09 | 320 | 1,419 | 0.0479 | 31.62 | 32.01 | 1.12 | 178 |
0.05 | 5.80 ± 0.02 | 1.0118 | 0.40 ± 0.04 | 310 | 1,581 | 0.0559 | 14.03 | 10.28 | 0.48 | 98 |
0.10 | 5.77 ± 0.01 | 1.0120 | 0.39 ± 0.04 | 308 | 1,609 | 0.0618 | 28.14 | 22.96 | 1.04 | 214 |
0.15 | 5.76 ± 0.01 | 1.0156 | 0.46 ± 0.07 | 305 | 1,430 | 0.0576 | 25.11 | 25.67 | 0.98 | 205 |
0.20 | 5.72 ± 0.01 | 1.0163 | 0.47 ± 0.06 | 289 | 1,082 | 0.0477 | 21.96 | 29.08 | 0.98 | 191 |