Kim, H. Kim, D.-S. Chae, S.-J. Go, S.-H. Kim, S.-W. Lee, D.-G. Song, H.-C. Kim, E.-J. Eum, J.-M. Nahm, S. 2024-01-19T13:03:04Z 2024-01-19T13:03:04Z 2022-01-10 2021-12-15 0272-8842 https://pubs.kist.re.kr/handle/201004/115934 A pseudocubic-tetragonal-orthorhombic (PC-T-O) multi-structure was developed in the 0.96(K0.5Na0.47Li0.03) (Nb0.92Sb0.08)O3-0.04(Ca0.5Sr0.5)ZrO3 [(KN0.47L0.03)NS-CSZ] lead-free piezoceramic. The PC structure observed in this sample was deemed to have an R3m rhombohedral structure. This sample demonstrated a large d33 (560 pC/N) owing to the existence of the PC-T-O multi-structure. The (KN0.47L0.03)NS-CSZ thick film also exhibited a large d33 (560 pC/N) and strain (0.19% at 4.0 kV/mm). The large strain was sustained even after the application of 106 electric-field cycles. Therefore, the (KN0.47L0.03)NS-CSZ thick film exhibited excellent fatigue characteristics and was utilized to fabricate a planar-type actuator, which achieved a large displacement (300 μm) and acceleration (872 G) at 125 V/mm. A cantilever-type multilayer actuator was also prepared using five layers of the (KN0.47L0.03)NS-CSZ thick film and demonstrated a large displacement (3500 μm) and acceleration (42.96 G) at 250 V/mm. Therefore, the (KN0.47L0.03)NS-CSZ thick film is a good candidate for fabricating various piezoelectric actuators. ？ 2021 English Elsevier Ltd Piezoelectric actuators Piezoelectric ceramics Piezoelectricity Thick films (C) piezoelectric property (D) perovskite (E) actuator A) tape casting D$-33$ Large strains Lead-Free Li$++$ Piezoelectric Pseudocubic Perovskite Simultaneous realization of high d33 and large strain in (K,Na,Li) (Nb,Sb)O3-(Ca,Sr)ZrO3 materials and their application in piezoelectric actuators Article 10.1016/j.ceramint.2021.08.358 1 Ceramics International, v.47, no.24, pp.34443 - 34454 Ceramics International 47 24 34443 34454 scie scopus 000725038300001 2-s2.0-85114165731 Materials Science, Ceramics Materials Science Article Piezoelectric actuators Piezoelectric ceramics Piezoelectricity Thick films (C) piezoelectric property (D) perovskite (E) actuator A) tape casting D$-33$ Large strains Lead-Free Li$++$ Piezoelectric Pseudocubic Perovskite (C) piezoelectric properties (D) perovskite (E) actuator A) tape casting Lead-free