Luo, H., Tang, S., Sun, Z., Zhang, Y., Yao, Y., Zheng, H., Yang, J., Ren, Y., Tang, M., Huang, H., Liu, H., Hinterstein, M., & Chen, J. (2023). Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature. Acta Materialia, 254, Article 119024. https://doi.org/10.1016/j.actamat.2023.119024
Luo, Huajie ; Tang, Shiyu ; Sun, Zheng et al. / Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature. In: Acta Materialia. 2023 ; Vol. 254.
@article{621ac3fa09064164a24406bd815c0ee3,
title = "Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature",
abstract = "The thermal stability of Bi0.5Na0.5TiO3-based piezoelectrics is one of the most critical metrics for practical applications. Finite element method (FEM) calculations estimate that incorporating Ag into the perovskite 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (BNT-6BT) matrix will generate increased tensile stress during the cooling process from sintering temperatures due to the large mismatch in the thermal expansion coefficient. Thus, we propose a strategy to improve the depolarization temperature (Td) by introducing Ag into the representative BNT-6BT and forming perovskite/metal (BNT-6BT/100xAg) composite ceramics. Td of the composite with x = 0.06 is improved to 145 °C without the degradation of piezoelectric response, which is approximately 45 °C higher than the prototype BNT-6BT. Comparative experiments demonstrate that the increase in Td stems from the synergistic effect of residual thermal stress, colossal grain size (above 200 μm), and oxygen vacancies. The present study provides an effective method to improve the thermal stability of BNT-based ceramics and can be also extended to other systems.",
author = "Huajie Luo and Shiyu Tang and Zheng Sun and Yueyun Zhang and Yonghao Yao and Huashan Zheng and Jikun Yang and Yang Ren and Mingxue Tang and Houbing Huang and Hui Liu and Manuel Hinterstein and Jun Chen",
note = "Publisher Copyright: {\textcopyright} 2023",
year = "2023",
month = aug,
day = "1",
doi = "10.1016/j.actamat.2023.119024",
language = "English",
volume = "254",
journal = "Acta Materialia",
issn = "1359-6454",
publisher = "Acta Materialia Inc",
}
Luo, H, Tang, S, Sun, Z, Zhang, Y, Yao, Y, Zheng, H, Yang, J, Ren, Y, Tang, M, Huang, H, Liu, H, Hinterstein, M & Chen, J 2023, 'Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature', Acta Materialia, vol. 254, 119024. https://doi.org/10.1016/j.actamat.2023.119024
Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature. / Luo, Huajie; Tang, Shiyu; Sun, Zheng et al.
In:
Acta Materialia, Vol. 254, 119024, 01.08.2023.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature
AU - Luo, Huajie
AU - Tang, Shiyu
AU - Sun, Zheng
AU - Zhang, Yueyun
AU - Yao, Yonghao
AU - Zheng, Huashan
AU - Yang, Jikun
AU - Ren, Yang
AU - Tang, Mingxue
AU - Huang, Houbing
AU - Liu, Hui
AU - Hinterstein, Manuel
AU - Chen, Jun
N1 - Publisher Copyright:
© 2023
PY - 2023/8/1
Y1 - 2023/8/1
N2 - The thermal stability of Bi0.5Na0.5TiO3-based piezoelectrics is one of the most critical metrics for practical applications. Finite element method (FEM) calculations estimate that incorporating Ag into the perovskite 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (BNT-6BT) matrix will generate increased tensile stress during the cooling process from sintering temperatures due to the large mismatch in the thermal expansion coefficient. Thus, we propose a strategy to improve the depolarization temperature (Td) by introducing Ag into the representative BNT-6BT and forming perovskite/metal (BNT-6BT/100xAg) composite ceramics. Td of the composite with x = 0.06 is improved to 145 °C without the degradation of piezoelectric response, which is approximately 45 °C higher than the prototype BNT-6BT. Comparative experiments demonstrate that the increase in Td stems from the synergistic effect of residual thermal stress, colossal grain size (above 200 μm), and oxygen vacancies. The present study provides an effective method to improve the thermal stability of BNT-based ceramics and can be also extended to other systems.
AB - The thermal stability of Bi0.5Na0.5TiO3-based piezoelectrics is one of the most critical metrics for practical applications. Finite element method (FEM) calculations estimate that incorporating Ag into the perovskite 0.94Bi0.5Na0.5TiO3–0.06BaTiO3 (BNT-6BT) matrix will generate increased tensile stress during the cooling process from sintering temperatures due to the large mismatch in the thermal expansion coefficient. Thus, we propose a strategy to improve the depolarization temperature (Td) by introducing Ag into the representative BNT-6BT and forming perovskite/metal (BNT-6BT/100xAg) composite ceramics. Td of the composite with x = 0.06 is improved to 145 °C without the degradation of piezoelectric response, which is approximately 45 °C higher than the prototype BNT-6BT. Comparative experiments demonstrate that the increase in Td stems from the synergistic effect of residual thermal stress, colossal grain size (above 200 μm), and oxygen vacancies. The present study provides an effective method to improve the thermal stability of BNT-based ceramics and can be also extended to other systems.
UR - http://www.scopus.com/inward/record.url?scp=85159765398&partnerID=8YFLogxK
U2 - 10.1016/j.actamat.2023.119024
DO - 10.1016/j.actamat.2023.119024
M3 - Article
AN - SCOPUS:85159765398
SN - 1359-6454
VL - 254
JO - Acta Materialia
JF - Acta Materialia
M1 - 119024
ER -
Luo H, Tang S, Sun Z, Zhang Y, Yao Y, Zheng H et al. Perovskite/metal (Bi0.5Na0.5TiO3-BaTiO3/Ag) lead-free composite ceramics featuring enhanced depolarization temperature. Acta Materialia. 2023 Aug 1;254:119024. doi: 10.1016/j.actamat.2023.119024
