Effect of processing on the structures and properties of bismuth sodium 
titanate compounds

Mahajan, Amit; Zhang, Hangfeng; Wu, Jiyue; Venkata Ramana, E.; Yu, Chuying; Tarakina, Nadezda V.; Reece, M. J.; Yan, Haixue

doi:10.1557/s43578-020-00040-1

Item

ITEM ACTIONSEXPORT

Add to Basket

Please note that a newer version of this item is available:
https://pure.mpg.de/pubman/item/item_3280985_3

DetailsSummary

Released

Journal Article

Effect of processing on the structures and properties of bismuth sodium titanate compounds

MPS-Authors

/persons/resource/persons212917

Tarakina, Nadezda V.
Nadezda V. Tarakina, Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society;

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

Article.pdf
(Publisher version), 4MB

Supplementary Material (public)

There is no public supplementary material available

Citation

Mahajan, A., Zhang, H., Wu, J., Venkata Ramana, E., Yu, C., Tarakina, N. V., et al. (2021). Effect of processing on the structures and properties of bismuth sodium titanate compounds. Journal of Materials Research, 36(5), 1195-1205. doi:10.1557/s43578-020-00040-1.

Cite as: https://hdl.handle.net/21.11116/0000-0007-DFDA-9

Abstract

The processing of sodium (Na) and bismuth (Bi)-based piezoelectric compounds are always a concern due to their volatilization at high temperatures (> 1000 °C) and the hygroscopic nature of the precursors. The effect of drying and impurities in the precursors on 0.94(Bi0.5Na0.5TiO3)–0.06BaTiO3 (BNTBT) ceramics was investigated. A substantial difference in the weight fraction of polar (R3c) and weak-polar (P4bm) phase at room temperature was observed for BNTBT obtained from dried, undried and low purity precursors, evaluated by XRD and Raman. The local crystal structure was evaluated by transmission electron microscope, which showed the presence of both ferroelectric domains and polar nano regions. The electrical measurements corroborated well with the structure results, and showed a variation in the depolarization temperature (Td). The results highlight the importance of the pre-processing steps on the functional compounds obtained from sensitive elements, which has broader implementations for similar systems.