High-power piezoelectric ceramics with superior figure-of-merits through tailored grain engineering

Authors
Lee, Dong-GyuKim, Yi YeonKim, Hyun SooKim, MinwooYoon, Tae KyoungSu, XukunImani, Iman M.Yoo, Il-RyeolHur, SunghoonKang, HeeminNahm, SahnYan, YongkeKang, Chong-YunBaik, Jeong MinCho, Kyung-HoonSong, Hyun-Cheol
Issue Date
2025-11
Publisher
Elsevier BV
Citation
Journal of the European Ceramic Society, v.45, no.14
Abstract
This study highlights the optimization of Mn-doped (1-x)Pb(Mg2/3Nb1/3O3-xPbTiO3 (PMN-PT) ceramics for highpower piezoelectric applications through a combination of (001) grain texturing with BaTiO3 seed and oxygen atmosphere sintering. The synergistic effects of Mn-induced domain-pinning and grain alignment significantly improved both the soft and hard piezoelectric properties. Optimized ceramics achieved a piezoelectric coefficient (d33) of 455 pC/N and a mechanical quality factor (Qm) of 1466, demonstrating high-performance potential. Oxygen sintering reduced porosity, further boosting mechanical stability and piezoelectric response. High-power performance tests confirmed these advancements, achieving a maximum vibration velocity of 0.45 m/s. This study underscores the potential of combining texturing and defect control to develop high-performance piezoelectric materials tailored for advanced applications in high-frequency and high-power devices.
Keywords
TEMPERATURE; PERFORMANCE; RESPONSES; GROWTH; Oxygen sintering; High-power applications; Pb(Mg1/3Nb2/3)O3-PbTiO3 (PMN-PT); Piezoelectric; Templated grain growth (TGG)
ISSN
0955-2219
URI
https://pubs.kist.re.kr/handle/201004/152691
DOI
10.1016/j.jeurceramsoc.2025.117536
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KIST Article > Others
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