| Title: | Improved thermal stability of dielectric properties and energy storage properties of lead-free relaxor ▫$Ba_{(1-x)}La_xTi_{0.89}Sn_{0.11}O_3$▫ ceramics |
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| Authors: | ID Khardazi, Said (Author)
ID Novak, Nikola, Institut "Jožef Stefan" (Author)
ID Kutnjak, Zdravko, Institut "Jožef Stefan" (Author)
ID Rožič, Brigita, Institut "Jožef Stefan" (Author)
ID Luk'yanchuk, Igor A. (Author), et al. |
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| Files: |  URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0272884225011022?via%3Dihub
 PDF - Presentation file. (3,66 MB, This file will be accessible after 27.02.2027)
MD5: F8E58A2340FC7B15B665C834DE01DF64
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  IJS - Jožef Stefan Institute
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| Abstract: | Environmentally friendly perovskite ceramics Ba(1-x)LaxTi0.89Sn0.11O3 with x = 0, 0.015, 0.025, and 0.035 (BLTSnx) were synthesized by solid-state reaction method. The enhanced energy storage properties were studied across the ferroelectric relaxor conversion. The pure perovskite structure of all prepared samples was confirmed by X-ray diffraction (XRD) analysis and the Raman spectroscopy technique. Scanning electron microscopy micrographs show a drastic decrease in the grain size in La-doped ceramics. Furthermore, the doped samples exhibit smeared phase transition and frequency dispersion in dielectric permittivity, typical for relaxors. The P-E hysteresis loops become thin with the increase of the La-doping, demonstrating the ferroelectric-relaxor phase conversion. The improved recovered energy density and the energy storage efficiency of 158.8 mJ/cm3 and 82.73 % were observed in the BLTSn2.5 sample at room temperature, respectively. These properties indicate that environmentally friendly BLTSn2.5 is a viable candidate for energy-storage capacitor applications near room temperature. |
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| Keywords: | solid-state, perovskite structure, ferroelectrics |
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| Publication status: | Published |
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| Publication version: | Author Accepted Manuscript |
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| Submitted for review: | 30.12.2024 |
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| Article acceptance date: | 27.02.2025 |
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| Publication date: | 27.02.2025 |
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| Publisher: | Elsevier |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 22386-22396 |
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| Numbering: | Vol. 51, iss. 16, Part A |
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| Source: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-23139  |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 1873-3956 |
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| DOI: | 10.1016/j.ceramint.2025.02.399 |
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| COBISS.SI-ID: | 244526851 |
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| Copyright: | © 2025 Elsevier Ltd and Techna Group S.r.l. |
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| Note: | Nasl. z nasl. zaslona;
Soavtorji: N. Novak,B. Rožič, Kutnjak Zdravko;
Opis vira z dne 1. 8. 2025;
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| Publication date in DiRROS: | 01.08.2025 |
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| Views: | 355 |
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| Downloads: | 76 |
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