CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Ultrahigh Piezoelectric Properties in Textured (K,Na)NbO3-Based Lead-Free Ceramics
Li, P; Zhai, JW; Shen, B; Zhang, SJ; Li, XL; Zhu, FY; Zhang, XM
AbstractHigh-performance lead-free piezoelectric materials are in great demand for next-generation electronic devices to meet the requirement of environmentally sustainable society. Here, ultrahigh piezoelectric properties with piezoelectric coefficients (d(33) approximate to 700 pC N-1, d(33)* approximate to 980 pm V-1) and planar electromechanical coupling factor (k(p) approximate to 76%) are achieved in highly textured (K,Na)NbO3 (KNN)-based ceramics. The excellent piezoelectric properties can be explained by the strong anisotropic feature, optimized engineered domain configuration in the textured ceramics, and facilitated polarization rotation induced by the intermediate phase. In addition, the nanodomain structures with decreased domain wall energy and increased domain wall mobility also contribute to the ultrahigh piezoelectric properties. This work not only demonstrates the tremendous potential of KNN-based ceramics to replace lead-based piezoelectrics but also provides a good strategy to design high-performance piezoelectrics by controlling appropriate phase and crystallographic orientation.
KeywordFerroelectric Single-crystals Free Piezoceramics Temperature Strain Phase Stability Behavior Origin Pzt Na
Indexed BySCI
WOS IDWOS:000425449300016
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Document Type期刊论文
Affiliation1.Li, P
2.Zhai, JW
3.Shen, B
4.Zhang, SJ
5.Li, XL
6.Zhu, FY
7.Zhang, XM
Recommended Citation
GB/T 7714
Li, P,Zhai, JW,Shen, B,et al. Ultrahigh Piezoelectric Properties in Textured (K,Na)NbO3-Based Lead-Free Ceramics[J]. ADVANCED MATERIALS,2018,30(8):-.
APA Li, P.,Zhai, JW.,Shen, B.,Zhang, SJ.,Li, XL.,...&Zhang, XM.(2018).Ultrahigh Piezoelectric Properties in Textured (K,Na)NbO3-Based Lead-Free Ceramics.ADVANCED MATERIALS,30(8),-.
MLA Li, P,et al."Ultrahigh Piezoelectric Properties in Textured (K,Na)NbO3-Based Lead-Free Ceramics".ADVANCED MATERIALS 30.8(2018):-.
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