Extremely large strain response under low driving electric fields in lead-based textured piezoelectric ceramics

Jia, Hongrui; Li, Zhen; Wang, Fan; Wei, Jing; Huang, Minqi; Wang, Linghang

doi:10.1016/j.ceramint.2022.09.262

Cited by 8 publications

(2 citation statements)

References 30 publications

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“…Leng et al have systematically compared the dielectric and piezoelectric properties in [001]- and [111]-textured PIN-PMN-PT ceramics and have shown higher d 33 of [001]-textured ceramics in comparison with that of [111]-textured ceramics . Texturing can be achieved by template grain growth (TGG), reactive template grain growth (RTGG), and tape casting technique. − There are several reports on improved performance in textured lead-based piezoelectric materials due to their superior electromechanical performance. ,, However, the hazardous nature of lead (Pb) has shifted the research toward lead-free alternatives. − The effects of texturing on the dielectric and piezoelectric properties of lead-free piezoceramics based on BaTiO 3 (BT), N 0.5 Bi 0.5 TiO 3 (NBT), and K 0.5 Na 0.5 NbO 3 (KNN) compositions have been extensively studied. − For instance, Liu et al have reported the enhanced piezoelectric performance of the [001] c -textured BaTiO 3 -based ceramics . Another study by Kim et al observed a phenomenal improvement in the piezoelectric performance in the [001]-textured KNN-based solid solution .…”

Section: Introductionmentioning

confidence: 99%

“…15−17 There are several reports on improved performance in textured lead-based piezoelectric materials due to their superior electromechanical performance. 15,18,19 However, the hazardous nature of lead (Pb) has shifted the research toward lead-free alternatives. 20−22 The effects of texturing on the dielectric and piezoelectric properties of lead-free piezoceramics based on BaTiO 3 (BT), N 0.5 Bi 0.5 TiO 3 (NBT), and K 0.5 Na 0.5 NbO 3 (KNN) compositions have been extensively studied.…”

Section: Introductionmentioning

confidence: 99%

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High-Performance [00l]-Textured BiAlO₃-Doped K_0.5Bi_0.5TiO₃ Ceramics

Badole,

Vasavan,

Saxena

et al. 2023

ACS Appl. Electron. Mater.

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grain-oriented 0.95K 0.5 Bi 0.5 TiO 3 −0.05BiAlO 3 (named K5BA-T) ceramics were prepared via the reactive template grain growth (RTGG) and tape casting technique. High-aspect-ratio K5BA powder was prepared using a plate-shape 4layer aurivillius oxide (K 0.5 Bi 4.5 Ti 4 O 15 ) powder as the template. The effects of grain morphology modification and texturing on the structural, dielectric, and piezoelectric properties of K5BA-T were systematically investigated. The average plate size of ∼6.5 μm with a thickness of ∼400 nm was observed in the K5BA sample. X-ray diffraction (XRD) and bulk texture measurements confirmed the texturing of K5BA-T in the [00l] crystallographic direction with a calculated Lotgering factor of ∼80%. Two anomalies in the temperature-dependent dielectric plot of the poled K5BA-T sample signified additional poling-induced phase transition. A lower value of room-temperature (RT) dielectric constant (ε r ) of ∼ 200 (at 1 MHz) and a higher piezoelectric charge coefficient (d 33 ) of ∼145 pCN −1 were obtained in the poled K5BA-T ceramic compared to that of the 0.95K 0.5 Bi 0.5 TiO 3 −0.05BiAlO 3 ceramic with randomly oriented grains (named K5BA-R). Consequently, the piezoelectric voltage coefficient (g 33 ) estimated for the textured ceramic showed a 650% increment (g 33 ∼ 80 × 10 −3 V mN −1 ) over the K5BA-R sample (g 33 ∼ 12.5 × 10 −3 V mN −1 ). The transduction coefficient (d 33 •g 33 ) of K5BA-T ceramic was calculated to be ∼11 600 × 10 −15 m 2 N −1 , which is nearly 9 times higher compared to its random counterpart. Further, a piezodevice fabricated using poled ceramic for energy harvesting showed an output voltage of ∼7 V with a current response of ∼2 μA under normal finger-tapping motion.

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