Abstract
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.
Original language | English |
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Pages (from-to) | 34443-34454 |
Number of pages | 12 |
Journal | Ceramics International |
Volume | 47 |
Issue number | 24 |
DOIs | |
Publication status | Published - 2021 Dec 15 |
Keywords
- (C) piezoelectric properties
- (D) perovskite
- (E) actuator
- A) tape casting
- Lead-free
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Ceramics and Composites
- Process Chemistry and Technology
- Surfaces, Coatings and Films
- Materials Chemistry