دورية أكاديمية
Exceptional electrostrain with minimal hysteresis and superior temperature stability under low electric field in KNN-based lead-free piezoceramics
| العنوان: | Exceptional electrostrain with minimal hysteresis and superior temperature stability under low electric field in KNN-based lead-free piezoceramics |
|---|---|
| المؤلفون: | Huan Liu, Yijin Hao, Ziqi Yang, Tianyi Feng, Bin Su, Xin Zhang, Mengping Xue, Bo-Ping Zhang, Jing-Feng Li |
| المصدر: | Journal of Advanced Ceramics, Vol 13, Iss 3, Pp 364-372 (2024) |
| بيانات النشر: | Tsinghua University Press, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Clay industries. Ceramics. Glass |
| مصطلحات موضوعية: | lead-free piezoelectric ceramics, potassium sodium niobate, electrostrain, temperature stability, low hysteresis, Clay industries. Ceramics. Glass, TP785-869 |
| الوصف: | Over the past two decades, (K0.5Na0.5)NbO3 (KNN)-based lead-free piezoelectric ceramics have made significant progress. However, attaining a high electrostrain with remarkable temperature stability and minimal hysteresis under low electric fields has remained a significant challenge. To address this long-standing issue, we have employed a collaborative approach that combines defect engineering, phase engineering, and relaxation engineering. The LKNNS-6BZH ceramic, when sintered at Tsint = 1170 ℃, demonstrates an impressive electrostrain with a d33∗ value of 0.276% and 1379 pm·V–1 under 20 kV·cm–1, which is comparable to or even surpasses that of other lead-free and Pb(Zr,Ti)O3 ceramics. Importantly, the electrostrain performance of this ceramic remains stable up to a temperature of 125 ℃, with the lowest hysteresis observed at 9.73% under 40 kV·cm–1. These excellent overall performances are attributed to the presence of defect dipoles involving VA′–VO∙∙ and BNb′–VO∙∙, the coexistence of R–O–T multiphase, and the tuning of the trade-off between long-range ordering and local heterogeneity. This work provides a lead-free alternative for piezoelectric actuators and a paradigm for designing piezoelectric materials with outstanding comprehensive performance under low electric fields. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2226-4108 2227-8508 |
| Relation: | https://www.sciopen.com/article/10.26599/JAC.2024.9220861; https://doaj.org/toc/2226-4108; https://doaj.org/toc/2227-8508 |
| DOI: | 10.26599/JAC.2024.9220861 |
| URL الوصول: | https://doaj.org/article/4850f5e02b3b433ba068c11cdcb08546 |
| رقم الأكسشن: | edsdoj.4850f5e02b3b433ba068c11cdcb08546 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 22264108 22278508 |
|---|---|
| DOI: | 10.26599/JAC.2024.9220861 |