Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics
Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics were prepared by a standard solid state reaction process, and the dielectric and ferroelectric characteristics were investigated together with the structures. Both X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis demonstra...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-07-01
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| Series: | Journal of Materiomics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847823000217 |
| _version_ | 1797783616608010240 |
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| author | Rui Hu Mi Bu Hang Chen Xiao Li Zhu Xiang Ming Chen |
| author_facet | Rui Hu Mi Bu Hang Chen Xiao Li Zhu Xiang Ming Chen |
| author_sort | Rui Hu Mi |
| collection | DOAJ |
| description | Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics were prepared by a standard solid state reaction process, and the dielectric and ferroelectric characteristics were investigated together with the structures. Both X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis demonstrated a single-phase perovskite structure in the present ceramics. A broad dielectric peak with strong frequency dispersion feature was determined, which indicated the typical relaxor nature originating from the nanoscale ferroelectric domain structures. These resulted from the structural distortion and chemical disorder due to high-entropy, where the long-range order of ferroelectric domains was destroyed. The homogeneous microstructure led to the reduced leakage current density and significantly improved dielectric strength, which was desired for the practical applications. Compared with the similar systems of Ba(Ti1-xZrx)O3 & Ba(Ti1-xSnx)O3, the present high-entropy ceramics indicated better relaxor ferroelectric characteristics. |
| first_indexed | 2024-03-13T00:28:25Z |
| format | Article |
| id | doaj.art-ca5e1aef13f54d00a0512d0ca2fa3f57 |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-13T00:28:25Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-ca5e1aef13f54d00a0512d0ca2fa3f572023-07-11T04:06:26ZengElsevierJournal of Materiomics2352-84782023-07-0194634641Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramicsRui Hu Mi0Bu Hang Chen1Xiao Li Zhu2Xiang Ming Chen3School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, ChinaSchool of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, ChinaSchool of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, ChinaCorresponding author.; School of Materials Science and Engineering, Zhejiang University, Hangzhou, 310027, ChinaBa(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics were prepared by a standard solid state reaction process, and the dielectric and ferroelectric characteristics were investigated together with the structures. Both X-ray diffraction (XRD) and energy dispersive spectroscopy (EDS) analysis demonstrated a single-phase perovskite structure in the present ceramics. A broad dielectric peak with strong frequency dispersion feature was determined, which indicated the typical relaxor nature originating from the nanoscale ferroelectric domain structures. These resulted from the structural distortion and chemical disorder due to high-entropy, where the long-range order of ferroelectric domains was destroyed. The homogeneous microstructure led to the reduced leakage current density and significantly improved dielectric strength, which was desired for the practical applications. Compared with the similar systems of Ba(Ti1-xZrx)O3 & Ba(Ti1-xSnx)O3, the present high-entropy ceramics indicated better relaxor ferroelectric characteristics.http://www.sciencedirect.com/science/article/pii/S2352847823000217High-entropy ceramicMicrostructurePerovskiteRelaxor ferroelectric |
| spellingShingle | Rui Hu Mi Bu Hang Chen Xiao Li Zhu Xiang Ming Chen Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics Journal of Materiomics High-entropy ceramic Microstructure Perovskite Relaxor ferroelectric |
| title | Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics |
| title_full | Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics |
| title_fullStr | Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics |
| title_full_unstemmed | Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics |
| title_short | Dielectric and ferroelectric characteristics of Ba(Ti0.25Zr0.25Hf0.25Sn0.25)O3 high-entropy ceramics |
| title_sort | dielectric and ferroelectric characteristics of ba ti0 25zr0 25hf0 25sn0 25 o3 high entropy ceramics |
| topic | High-entropy ceramic Microstructure Perovskite Relaxor ferroelectric |
| url | http://www.sciencedirect.com/science/article/pii/S2352847823000217 |
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