Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics
Lead-free piezoelectric bismuth sodium titanate (Bi0.5Na0.5)TiO3 (BNT) ceramics were prepared by quenching and the correlation among a depolarization temperature Td, the mechanical strength, and their piezoelectric properties were investigated. We controlled the quenching rate in the temperature ran...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2020-04-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/21870764.2020.1732020 |
| _version_ | 1818642665621684224 |
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| author | Yuka Takagi Hajime Nagata Tadashi Takenaka |
| author_facet | Yuka Takagi Hajime Nagata Tadashi Takenaka |
| author_sort | Yuka Takagi |
| collection | DOAJ |
| description | Lead-free piezoelectric bismuth sodium titanate (Bi0.5Na0.5)TiO3 (BNT) ceramics were prepared by quenching and the correlation among a depolarization temperature Td, the mechanical strength, and their piezoelectric properties were investigated. We controlled the quenching rate in the temperature range from 1100°C to 800°C. We examined the 5 patterns of the quenching rate (QR): 0.05 (ordinary firing, OF), 3.85, 5.77, 6.67, and 15.0 (quenching) oC/s. Td of the rapid quenched sample reached 229°C (QR = 15.0), but its mechanical strength decreased to a quarter of that of the OF ceramics. On the other hand, Td was 211°C at QR = 3.85 which was higher than that of OF-ceramic (QR = 0.05) at about 180°C. Moreover, three-point bending strength (227 MPa) of the quenched BNLT4 (QR = 3.85) was equivalent to that of the OF ceramics (235 MPa). Therefore, both Td and the mechanical strength were improved by controlling the quenching rate. |
| first_indexed | 2024-12-16T23:46:40Z |
| format | Article |
| id | doaj.art-3c433f5851954b6aa65e3d23da2ba77d |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-16T23:46:40Z |
| publishDate | 2020-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-3c433f5851954b6aa65e3d23da2ba77d2022-12-21T22:11:28ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642020-04-018227728310.1080/21870764.2020.17320201732020Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramicsYuka Takagi0Hajime Nagata1Tadashi Takenaka2Tokyo University of ScienceTokyo University of ScienceTokyo University of ScienceLead-free piezoelectric bismuth sodium titanate (Bi0.5Na0.5)TiO3 (BNT) ceramics were prepared by quenching and the correlation among a depolarization temperature Td, the mechanical strength, and their piezoelectric properties were investigated. We controlled the quenching rate in the temperature range from 1100°C to 800°C. We examined the 5 patterns of the quenching rate (QR): 0.05 (ordinary firing, OF), 3.85, 5.77, 6.67, and 15.0 (quenching) oC/s. Td of the rapid quenched sample reached 229°C (QR = 15.0), but its mechanical strength decreased to a quarter of that of the OF ceramics. On the other hand, Td was 211°C at QR = 3.85 which was higher than that of OF-ceramic (QR = 0.05) at about 180°C. Moreover, three-point bending strength (227 MPa) of the quenched BNLT4 (QR = 3.85) was equivalent to that of the OF ceramics (235 MPa). Therefore, both Td and the mechanical strength were improved by controlling the quenching rate.http://dx.doi.org/10.1080/21870764.2020.1732020lead-free piezoelectric materialsmechanical strengthdepolarization temperature |
| spellingShingle | Yuka Takagi Hajime Nagata Tadashi Takenaka Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics Journal of Asian Ceramic Societies lead-free piezoelectric materials mechanical strength depolarization temperature |
| title | Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics |
| title_full | Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics |
| title_fullStr | Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics |
| title_full_unstemmed | Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics |
| title_short | Effects of quenching on bending strength and piezoelectric properties of (Bi0.5Na0.5)TiO3 ceramics |
| title_sort | effects of quenching on bending strength and piezoelectric properties of bi0 5na0 5 tio3 ceramics |
| topic | lead-free piezoelectric materials mechanical strength depolarization temperature |
| url | http://dx.doi.org/10.1080/21870764.2020.1732020 |
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