Correlation between cubic-based polymorphic phase boundary structures and the piezoelectric properties of 0.96(Na0.5K0.5)(Nb1-xSbx)-0.04BaTiO3 ceramics
| Autor: | Xing-Hua Ma, Zhenlu Zhang, Tiewei Xu, Shuling Zhang |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Asian Ceramic Societies, Vol 8, Iss 4, Pp 1127-1134 (2020) |
| Druh dokumentu: | article |
| ISSN: | 2187-0764 21870764 |
| DOI: | 10.1080/21870764.2020.1817269 |
| Popis: | CuO-added 0.96(Na0.5K0.5)(Nb1-xSbx)-0.04BaTiO3 ceramics with 0.0 ≤ x ≤ 0.1 were sintered at 980°C for 6 hours and the effects of antimony on the successive phase transition and the corresponding piezoelectric properties were carefully studied. It was found that with the increasing of x values, the crystal structures varied from orthorhombic-tetragonal polymorphic phase boundary (PPB), orthorhombic-tetragonal-cubic PPB, and finally to the tetragonal-cubic PPB structure. Accordingly, the piezoelectric properties of the specimens were influenced by the varied crystal structures. In particular, the specimen with a tetragonal (88.01%)-cubic (11.99%) PPB structure (x = 0.06) showed a large d33 of 302 pC/N and a high strain of 0.17% at 4.5kV/mm, revealing its promising potential as the Pb-free piezoelectric actuators. |
| Databáze: | Directory of Open Access Journals |
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