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Characteristics of giant piezoelectricity around the rhombohedral-tetragonal phase boundary in (K,Na) NbO3-based ceramics with different additives
Wang, XP; Zheng, T; Wu, JG; Xiao, DQ; Zhu, JG; Wang, H; Wang, XJ; Lou, XJ; Gu, YL; Wu, JG (reprint author), Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China.
2015
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
ISSN2050-7488
Volume3Issue:31Pages:15951—15961
Subtype期刊文献
AbstractIn this work, we confirmed the electric-induced transition (EPT) in (K, Na) NbO3-based ceramics through experiment and theory. Through in situ X-ray diffraction measurements, electric field-induced phases (EPs) could be observed in the ceramics. To explain the appearance of EPs, a new function lambda(Eex) was introduced into the six order Devonshire theory when the external electric field was applied. Further studies indicate that EPT had two possible forms, i. e., tetragonal-electric induced phase transition (T-EP) and rhombohedral-electric induced phase transition (R-EP), and T-EP plays a more positive role than R-EP in terms of the piezoelectric response. Also, a giant piezoelectricity (d(33) = 435-490 p(C) N-1), a high Curie temperature (T-C = 205-234 degrees C), and a converse piezoelectric coefficient (d(33)* = 500-890 pm V-1) can be achieved by choosing optimum metal oxides as well as their content. We believe that such work could help to further study the physical mechanisms of giant piezoelectricity in potassium-sodium niobate.
KeywordLead-free Piezoceramics Electrical-properties Solid-solution Sintering Aid Pzt Ceramics Strain Behavior
Indexed BySCI
Language英语
WOS IDWOS:000358722200020
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24881
Collection中科院上海应用物理研究所2011-2019年
Corresponding AuthorWu, JG (reprint author), Sichuan Univ, Dept Mat Sci, Chengdu 610064, Peoples R China.
Recommended Citation
GB/T 7714
Wang, XP,Zheng, T,Wu, JG,et al. Characteristics of giant piezoelectricity around the rhombohedral-tetragonal phase boundary in (K,Na) NbO3-based ceramics with different additives[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(31):15951—15961.
APA Wang, XP.,Zheng, T.,Wu, JG.,Xiao, DQ.,Zhu, JG.,...&Wu, JG .(2015).Characteristics of giant piezoelectricity around the rhombohedral-tetragonal phase boundary in (K,Na) NbO3-based ceramics with different additives.JOURNAL OF MATERIALS CHEMISTRY A,3(31),15951—15961.
MLA Wang, XP,et al."Characteristics of giant piezoelectricity around the rhombohedral-tetragonal phase boundary in (K,Na) NbO3-based ceramics with different additives".JOURNAL OF MATERIALS CHEMISTRY A 3.31(2015):15951—15961.
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