التفاصيل البيبلوغرافية
| العنوان: |
Energy harvesting properties for potassium-sodium niobate piezoceramics through synergistic effect of phase structure and texturing engineering. |
| المؤلفون: |
Liu, Dong1,2 (AUTHOR), Li, Jin-Rui1 (AUTHOR), Wang, Long1 (AUTHOR), Tang, Ting1 (AUTHOR), Wang, Qi1 (AUTHOR) wangqi15@ustb.edu.cn, Hao, Junjie2 (AUTHOR), Zhang, Bo-Ping1 (AUTHOR) bpzhang@ustb.edu.cn, Zhu, Li-Feng1 (AUTHOR) zhu@ustb.edu.cn |
| المصدر: |
Ceramics International. Jan2025, Vol. 51 Issue 1, p836-843. 8p. |
| مصطلحات موضوعية: |
*ENERGY harvesting, *QUALITY factor, *STRUCTURAL engineering, *POWER density, *ENVIRONMENTAL protection |
| مستخلص: |
In order to address the energy dilemma and meet environmental protection requirements, it is an urgent need to develop lead-free piezoelectric energy harvesters (PEHs). However, the low output power density has seriously hindered the application of lead-free piezoceramics as high efficiency energy harvesters. To solve above question, the combination of phase structure regulation and texturing technique in the K 0.5 Na 0.5 NbO 3 - x Bi 0.5 Na 0.5 ZrO 3 -0.5%wtBiFeO 3 (KNN- x BNZ) ceramics was adopted in this work. Because of both the Rhombohedral-Orthorhombic-Tetragonal (R-O-T) multiphases coexistence and texturing engineering, an ultrahigh piezoelectric activity quality factor d 33 × g 33 ∼ 18324 × 10−15 m2 N−1 was achieved in the textured KNN-0.05BNZ (T-KNN-0.05BNZ) ceramics, which is about third times higher than that of random KNN-0.05BNZ (R-KNN-0.05BNZ) (d 33 × g 33 ∼ 6672 × 10−15 m2 N−1) ones. A high output power of ∼0.32 mW was also obtained in the T-KNN-0.05BNZ ceramics by cantilever beam-based energy harvester devices under the resonance frequency of 75 Hz and matched R L of 1.2 MΩ, suggesting that the T-KNN-0.05BNZ ceramics have a great potential for application in the PEHs devices. This result also reveals that the combination of phase structure regulation and texturing technique is an effective way to achieved a high energy harvesting performances. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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