Effect of B-site Zr and Hf substitution on ferroelectric polar order for tetragonal tungsten bronze ceramic
| Autor: | Wenbin Feng, Sidi Long, Yi Wan, Dunpu Zhang |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Journal of Asian Ceramic Societies, Vol 10, Iss 2, Pp 396-404 (2022) |
| Druh dokumentu: | article |
| ISSN: | 21870764 2187-0764 |
| DOI: | 10.1080/21870764.2022.2062809 |
| Popis: | Lead free ferroelectric ceramic Ba4Sm2Hf4Nb6O30(BSHN) with tungsten bronze structure was synthesized and characterized. The effect of B-site cation electron configuration (Hf and Zr) on origin of ferroelectricity and polarization reversal was also studied in detail. The X-ray diffraction (XRD) pattern was indexed with tetragonal tungsten bronze in P4bm space group for BSHN. Obvious dielectric anomaly was observed in the temperature dependent permittivity curve, and quite large thermal hysteresis was obtained from the differential scanning calorimetry (DSC) result. While at lower temperature ( |
| Databáze: | Directory of Open Access Journals |
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