Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation
Abstract (K,Na)NbO3-based ceramics are deemed among the most promising lead-free piezoelectric materials, though their overall piezoelectric performance still lags behind the mainstream lead-containing counterparts. Here, we achieve an ultrahigh piezoelectric charge coefficient d33 ∼ 807 pC·N−1, alo...
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Nature Portfolio
2025-01-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-025-56074-8 |
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| author | Li-Feng Zhu Dong Liu Xiaoming Shi Shiqing Deng Jiecheng Liu Li-Yu Wei Zi-Qi Yang Qi Wang Bo-Ping Zhang Houbing Huang Shujun Zhang Jing-Feng Li |
| author_facet | Li-Feng Zhu Dong Liu Xiaoming Shi Shiqing Deng Jiecheng Liu Li-Yu Wei Zi-Qi Yang Qi Wang Bo-Ping Zhang Houbing Huang Shujun Zhang Jing-Feng Li |
| author_sort | Li-Feng Zhu |
| collection | DOAJ |
| description | Abstract (K,Na)NbO3-based ceramics are deemed among the most promising lead-free piezoelectric materials, though their overall piezoelectric performance still lags behind the mainstream lead-containing counterparts. Here, we achieve an ultrahigh piezoelectric charge coefficient d33 ∼ 807 pC·N−1, along with a high longitudinal electromechanical coupling factor (k33 ∼ 88%) and Curie temperature (Tc ∼ 245 °C) in the (K,Na)(Nb1-x Sb x )O3-Bi0.5Na0.5ZrO3-BiFeO3 (KNN-xSb) system through structural flexibility and grain orientation strategies. Phenomenological models, phase field simulations and high-angle annular dark-field scanning transmission electron microscopy reveal that the structural flexibility originates from the high Coulomb force between K+/Na+ ions and Sb ions in the KNN-xSb system, while the grain orientation promotes the displacement of B-site cations leveraging the engineered domain configuration. As a result of its excellent comprehensive piezoelectric properties, the textured KNN-5Sb/epoxy 1-3 piezoelectric composite is found to possess a broader bandwidth BW = 60% and higher amplitude output voltage than commercial PZT-5 and other KNN counterparts. These findings suggest that the textured KNN-5Sb ceramics could potentially replace current lead-based piezoceramics in transducer applications. |
| format | Article |
| id | doaj-art-c1160d72833b472ca79b6d97b7924890 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
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| series | Nature Communications |
| spelling | doaj-art-c1160d72833b472ca79b6d97b79248902025-01-26T12:42:44ZengNature PortfolioNature Communications2041-17232025-01-011611810.1038/s41467-025-56074-8Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientationLi-Feng Zhu0Dong Liu1Xiaoming Shi2Shiqing Deng3Jiecheng Liu4Li-Yu Wei5Zi-Qi Yang6Qi Wang7Bo-Ping Zhang8Houbing Huang9Shujun Zhang10Jing-Feng Li11School of Materials Science and Engineering, University of Science and Technology BeijingSchool of Materials Science and Engineering, University of Science and Technology BeijingDepartment of Physics, University of Science and Technology BeijingBeijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology BeijingDepartment of Physics, University of Science and Technology BeijingState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversitySchool of Materials Science and Engineering, University of Science and Technology BeijingSchool of Materials Science and Engineering, University of Science and Technology BeijingSchool of Materials Science and Engineering and Advanced Research Institute of Multidisciplinary Science, Beijing Institute of TechnologyInstitute for Superconducting and Electronic Materials, Faculty of Engineering and Information Sciences, University of WollongongState Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua UniversityAbstract (K,Na)NbO3-based ceramics are deemed among the most promising lead-free piezoelectric materials, though their overall piezoelectric performance still lags behind the mainstream lead-containing counterparts. Here, we achieve an ultrahigh piezoelectric charge coefficient d33 ∼ 807 pC·N−1, along with a high longitudinal electromechanical coupling factor (k33 ∼ 88%) and Curie temperature (Tc ∼ 245 °C) in the (K,Na)(Nb1-x Sb x )O3-Bi0.5Na0.5ZrO3-BiFeO3 (KNN-xSb) system through structural flexibility and grain orientation strategies. Phenomenological models, phase field simulations and high-angle annular dark-field scanning transmission electron microscopy reveal that the structural flexibility originates from the high Coulomb force between K+/Na+ ions and Sb ions in the KNN-xSb system, while the grain orientation promotes the displacement of B-site cations leveraging the engineered domain configuration. As a result of its excellent comprehensive piezoelectric properties, the textured KNN-5Sb/epoxy 1-3 piezoelectric composite is found to possess a broader bandwidth BW = 60% and higher amplitude output voltage than commercial PZT-5 and other KNN counterparts. These findings suggest that the textured KNN-5Sb ceramics could potentially replace current lead-based piezoceramics in transducer applications.https://doi.org/10.1038/s41467-025-56074-8 |
| spellingShingle | Li-Feng Zhu Dong Liu Xiaoming Shi Shiqing Deng Jiecheng Liu Li-Yu Wei Zi-Qi Yang Qi Wang Bo-Ping Zhang Houbing Huang Shujun Zhang Jing-Feng Li Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation Nature Communications |
| title | Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation |
| title_full | Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation |
| title_fullStr | Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation |
| title_full_unstemmed | Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation |
| title_short | Ultrahigh piezoelectric performances of (K,Na)NbO3 based ceramics enabled by structural flexibility and grain orientation |
| title_sort | ultrahigh piezoelectric performances of k na nbo3 based ceramics enabled by structural flexibility and grain orientation |
| url | https://doi.org/10.1038/s41467-025-56074-8 |
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