Mishra, Anupam ; Majumdar, Bhaskar ; Ranjan, Rajeev (2017) A complex lead-free (Na, Bi, Ba)(Ti, Fe)O3 single phase perovskite ceramic with a high energy-density and high discharge-efficiency for solid state capacitor applications Journal of the European Ceramic Society, 37 (6). pp. 2379-2384. ISSN 0955-2219
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Official URL: http://doi.org/10.1016/j.jeurceramsoc.2017.01.036
Related URL: http://dx.doi.org/10.1016/j.jeurceramsoc.2017.01.036
Abstract
We have investigated a series of compositions in the pseudo-ternary lead-free alloy system Na1/2Bi1/2TiO3-BaTiO3-BiFeO3 with regard to its energy storage density and discharge efficiency. A composition 0.4(Na0.5Bi0.5TiO3)-0.225BaTiO3-0.375BiFeO3 of this series was identified to give the best energy density and discharge efficiency. While conventional sintering gave energy density of 0.77 J/cm3 and discharge efficiency of 67%, we achieved a remarkable increase in energy storage density (∼1.4 J/cm3) and discharge efficiency (∼90%) by using spark plasma sintering of this composition. Our results suggest that this alloy system can be a potential lead-free candidate for high electric energy storage and discharge efficiency.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to European Ceramic Society. |
| ID Code: | 122965 |
| Deposited On: | 31 Aug 2021 11:42 |
| Last Modified: | 31 Aug 2021 11:42 |
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