Phase-transition induced optimization on electrostrain, electrocaloric refrigeration and energy storage of LiNbO3 doped BNT-BT ceramics
| dc.contributor.author | Zhang, Yueming | |
| dc.contributor.author | Liang, Guochuang | |
| dc.contributor.author | Tang, Silin | |
| dc.contributor.author | Peng, Biaolin | |
| dc.contributor.author | Zhang, Qi | |
| dc.contributor.author | Liu, Laijun | |
| dc.contributor.author | Wenhong, Sun | |
| dc.date.accessioned | 2020-02-24T11:27:38Z | |
| dc.date.available | 2020-02-24T11:27:38Z | |
| dc.date.issued | 2019-09-23 | |
| dc.description.abstract | ((Bi0.5Na0.5TiO3)0.88-(BaTiO3)0.12)(1-x)-(LiNbO3)x (x = 0.0, 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, and 0.07; abbreviated as LiNbO3-doped BNT-BT) ceramics possessing many excellent performances (large electrostrain, negative electrocaloric effect and energy storage density with high efficiency) was fabricated by the conventional solid-state reaction method. A large electrostrain (maximum ~ 0.34% at 100 kV/cm and room temperature) with high thermal stability over a broad temperature range (~80 K) is obtained at x = 0.03. A large energy storage density (maximum Wenergy ~ 0.665 J/cm3 at 100 kV/cm and room temperature) with a high efficiency (η ~ 49.3%) is achieved at x = 0.06. Moreover, a large negative electrocaloric (EC) effect (maximum ΔT ~ 1.71 K with ΔS ~ - 0.22 J/(K kg) at 70 kV/cm)) is also obtained at x = 0.04. Phase transition (from ferroelectric to antiferroelectric and then to relaxor) induced by increasing the doping amount of LiNbO3 plays a very key role on the optimization of these performances. These findings and breakthroughs make the LiNbO3-doped BNT-BT ceramics very promising candidates as multifunctional materials. | en_UK |
| dc.identifier.citation | Zhang Y, Liang G, Tang S, et al., (2020) Phase-transition induced optimization on electrostrain, electrocaloric refrigeration and energy storage of LiNbO3 doped BNT-BT ceramics. Ceramics International, Volume 46, Issue 2, February 2020, pp. 1343-1351 | en_UK |
| dc.identifier.issn | 0272-8842 | |
| dc.identifier.uri | https://doi.org/10.1016/j.ceramint.2019.09.097 | |
| dc.identifier.uri | https://dspace.lib.cranfield.ac.uk/handle/1826/15173 | |
| dc.language.iso | en | en_UK |
| dc.publisher | Elsevier | en_UK |
| dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 International | * |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
| dc.subject | Phase-transition | en_UK |
| dc.subject | Electrostrain | en_UK |
| dc.subject | Energy storage | en_UK |
| dc.subject | Electrocaloric effect | en_UK |
| dc.title | Phase-transition induced optimization on electrostrain, electrocaloric refrigeration and energy storage of LiNbO3 doped BNT-BT ceramics | en_UK |
| dc.type | Article | en_UK |