Heat treatments for thermal sprayed lead-free piezoelectric ceramic coatings

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Heat treatments for thermal sprayed lead-free piezoelectric ceramic coatings
Title:
Heat treatments for thermal sprayed lead-free piezoelectric ceramic coatings
Journal Title:
Journal of Materials Research and Technology
Keywords:
Publication Date:
11 October 2023
Citation:
Yue, H., Fang, K., Gong, Z., Guo, K., Guo, S., Liu, H., Yao, K., & Tay, F. E. H. (2023). Heat treatments for thermal sprayed lead-free piezoelectric ceramic coatings. Journal of Materials Research and Technology, 27, 2080–2088. https://doi.org/10.1016/j.jmrt.2023.10.075
Abstract:
[0.94(Bi0.5Na0.5)TiO3-0.06BaTiO3]0.98-(LiNbO3)0.02 (BNBTLN) piezoelectric ceramic coating was fabricated by thermal spray process on stainless steel substrates with thermal barrier coating (TBC) as an intermediary layer. The morphology, structure, and electrical properties of the thermal-sprayed BNBTLN coatings after furnace heat treatment (F-HT) and plasma torch heat treatment (P-HT) were studied, respectively. The BNBTLN coatings after F-HT and P-HT both had the coexisting rhombohedral and tetragonal perovskite phases and exhibited excellent electrical properties, with an effective piezoelectric coefficient d33 of 68 p.m./V and 40 p.m./V, respectively. These results reveal that high quality piezoelectric coatings can be achieved by the P-HT method, which is promising for scaling up the fabrication of piezoelectric ceramic coatings.
License type:
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Funding Info:
This project is partially supported by the National Natural Science Foundation of China (Grant No. 52002164) and the Natural Science Foundation of Jiangxi Province of China (Grant No. 20202BABL204013).

This research / project is supported by the Agency for Science, Technology and Research - RIE2020 Advanced Manufacturing and Engineering (AME) Programmatic Fund
Grant Reference no. : A20G9b0135
Description:
ISSN:
2238-7854