The Effect of Niobium Doping on the Electrical Properties of 0.4(Bi0.5K0.5)TiO3-0.6BiFeO3 Lead-Free Piezoelectric Ceramics
Abstract
:1. Introduction
2. Results and Discussion
Sample | Density (% Relative Density) | a Unit Cell Parameter (nm) | β (°) | Mean Grain Diameter (μm) |
---|---|---|---|---|
0.4(K0.5Bi0.5)TiO3-0.6BiFeO3 | 98.9 ± 0.2 | 0.396218 (0.0000031) | 90.0195 (0.00082) | 0.9 ± 0.5 |
0.4(K0.5Bi0.5)Ti0.99Nb0.01O3-0.6BiFe0.99Nb0.01O3 | 98.5 ± 1.0 | 0.396243 (0.0000066) | 89.9882 (0.00276) | 1.3 ± 0.5 |
0.4(K0.5Bi0.5)Ti0.97Nb0.03O3-0.6BiFe0.97Nb0.03O3 | 98.4 ± 0.4 | 0.396437 (0.0000077) | 89.99 (0.00207) | 1.4 ± 0.6 |
Sample | εrmax (10 kHz/1 MHz) | Tmax (10 kHz/1 MHz) | tanδ (10 kHz/1 MHz, 40 °C) | σ (Ω−1·cm−1/300 °C) | σ (Ω−1·cm−1/30 °C) | d33 (pC/N) | Smax/Emax (pm/V) |
---|---|---|---|---|---|---|---|
0.4(K0.5Bi0.5)TiO3-0.6BiFeO3 | 8460 | 384 °C | 0.08 | 3.38 × 10−5 | 1.57 × 10−10 | 20 | 90 |
6637 | 419 °C | 0.11 | |||||
0.4(K0.5Bi0.5)Ti0.99Nb0.01O3-0.6BiFe0.99Nb0.01O3 | 7527 | 387 °C | 0.07 | 1.36 × 10−5 | 1.25 × 10−12 | 13 | 65 |
6034 | 413 °C | 0.13 | |||||
0.4(K0.5Bi0.5)Ti0.97Nb0.03O3-0.6BiFe0.97Nb0.03O3 | 4050 | 412 °C | 0.07 | 1.09 × 10−6 | 2.69 × 10−15 | 11 | 56 |
3104 | 398 °C | 0.18 |
3. Experimental Section
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Fisher, J.G.; Jang, S.-H.; Park, M.-S.; Sun, H.; Moon, S.-H.; Lee, J.-S.; Hussain, A. The Effect of Niobium Doping on the Electrical Properties of 0.4(Bi0.5K0.5)TiO3-0.6BiFeO3 Lead-Free Piezoelectric Ceramics. Materials 2015, 8, 8183-8194. https://doi.org/10.3390/ma8125457
Fisher JG, Jang S-H, Park M-S, Sun H, Moon S-H, Lee J-S, Hussain A. The Effect of Niobium Doping on the Electrical Properties of 0.4(Bi0.5K0.5)TiO3-0.6BiFeO3 Lead-Free Piezoelectric Ceramics. Materials. 2015; 8(12):8183-8194. https://doi.org/10.3390/ma8125457
Chicago/Turabian StyleFisher, John G., Seo-Hee Jang, Mi-So Park, Hengyang Sun, Su-Hyun Moon, Jong-Sook Lee, and Ali Hussain. 2015. "The Effect of Niobium Doping on the Electrical Properties of 0.4(Bi0.5K0.5)TiO3-0.6BiFeO3 Lead-Free Piezoelectric Ceramics" Materials 8, no. 12: 8183-8194. https://doi.org/10.3390/ma8125457