Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics
In this paper, (Na,K)<sub>1−x</sub>Li<sub>.x</sub>(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> ceramics were fabricated with x(= Li) substitution by two-step sintering method, and their physical characteristics were inv...
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MDPI AG
2020-09-01
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| Online Access: | https://www.mdpi.com/2073-4352/10/10/868 |
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| author | Juhyun Yoo Jonghyun Lee |
| author_facet | Juhyun Yoo Jonghyun Lee |
| author_sort | Juhyun Yoo |
| collection | DOAJ |
| description | In this paper, (Na,K)<sub>1−x</sub>Li<sub>.x</sub>(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> ceramics were fabricated with x(= Li) substitution by two-step sintering method, and their physical characteristics were investigated. When Li substitution was added to the ceramics, piezoelectric constant (d<sub>33</sub>) and electromechanical coupling factor (k<sub>p</sub>) were rapidly reduced. However, mechanical quality factor (Q<sub>m</sub>) was enhanced. For the KNN-BNZ((K,Na)(Nb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>) ceramics with Li(x) = 0 substitution<sub>,</sub> the best physical properties of d<sub>33</sub> = 300 [pC/N], k<sub>p</sub> = 0.40, Q<sub>m</sub> = 33 and dialectic constant (ε<sub>r</sub>) = 2430 were shown, respectively. Additionally, the KNN-BNZ ceramics with Li(x) = 0.02<sub>,</sub> the d<sub>33</sub> of 246[pC/N], the k<sub>p</sub> of 0.37, the Q<sub>m</sub> of 42 and the ε<sub>r</sub> of 2090 appeared, which were suitable for the low-loss piezoelectric actuator. |
| first_indexed | 2024-03-10T16:03:44Z |
| format | Article |
| id | doaj.art-78a0af4cbab14632a9ecd8d8fe0ffb4f |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T16:03:44Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-78a0af4cbab14632a9ecd8d8fe0ffb4f2023-11-20T15:03:28ZengMDPI AGCrystals2073-43522020-09-01101086810.3390/cryst10100868Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> CeramicsJuhyun Yoo0Jonghyun Lee1Department of Electrical Engineering, Semyung University, Jecheon 390-711, KoreaDepartment of Electrical Engineering, Semyung University, Jecheon 390-711, KoreaIn this paper, (Na,K)<sub>1−x</sub>Li<sub>.x</sub>(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> ceramics were fabricated with x(= Li) substitution by two-step sintering method, and their physical characteristics were investigated. When Li substitution was added to the ceramics, piezoelectric constant (d<sub>33</sub>) and electromechanical coupling factor (k<sub>p</sub>) were rapidly reduced. However, mechanical quality factor (Q<sub>m</sub>) was enhanced. For the KNN-BNZ((K,Na)(Nb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>) ceramics with Li(x) = 0 substitution<sub>,</sub> the best physical properties of d<sub>33</sub> = 300 [pC/N], k<sub>p</sub> = 0.40, Q<sub>m</sub> = 33 and dialectic constant (ε<sub>r</sub>) = 2430 were shown, respectively. Additionally, the KNN-BNZ ceramics with Li(x) = 0.02<sub>,</sub> the d<sub>33</sub> of 246[pC/N], the k<sub>p</sub> of 0.37, the Q<sub>m</sub> of 42 and the ε<sub>r</sub> of 2090 appeared, which were suitable for the low-loss piezoelectric actuator.https://www.mdpi.com/2073-4352/10/10/868two-step sintering method(Na,K)NbO<sub>3</sub>piezoelectric actuatorpiezoelectric constant (d<sub>33</sub>) |
| spellingShingle | Juhyun Yoo Jonghyun Lee Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics Crystals two-step sintering method (Na,K)NbO<sub>3</sub> piezoelectric actuator piezoelectric constant (d<sub>33</sub>) |
| title | Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics |
| title_full | Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics |
| title_fullStr | Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics |
| title_full_unstemmed | Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics |
| title_short | Microstructure and Piezoelectricity of (Na,K,Li)(Nb,Sb)O<sub>3</sub>–(Bi,Na)(Sr)ZrO<sub>3</sub>–BaZrO<sub>3</sub> Ceramics |
| title_sort | microstructure and piezoelectricity of na k li nb sb o sub 3 sub bi na sr zro sub 3 sub bazro sub 3 sub ceramics |
| topic | two-step sintering method (Na,K)NbO<sub>3</sub> piezoelectric actuator piezoelectric constant (d<sub>33</sub>) |
| url | https://www.mdpi.com/2073-4352/10/10/868 |
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