Peer-reviewed veterinary case report
Enhanced Strain Properties in KNN-Based Lead-free Piezoelectric Multilayer Actuators by Low-Temperature Texture Engineering.
- Year:
- 2025
- Authors:
- Nie J et al.
- Affiliation:
- China Electric Power Research Institute · China
Abstract
In response to the demand for lead-free replacement of multilayer piezoelectric actuators (MLAs), KNN-based lead-free piezoceramics with high curie temperatures and environmental friendliness are selected for the application study. To improve the piezoelectric properties of piezoelectric ceramics, a texture approach was adopted, and 0.2% CuO was added as a sintering aid; the TGG texturing technique was combined with the stacked element cofiring technique. Finally, we investigate the relevant properties of KNN-based multilayer piezoelectric actuators. Here, a compositional system of 0.96-(Na<sub>0.5</sub>K<sub>0.5</sub>)-(Nb<sub>0.965</sub>Sb<sub>0.035</sub>)-O<sub>3</sub>-0.01CaZrO<sub>3</sub>-0.03-(K<sub>0.5</sub>Bi<sub>0.5</sub>HfO<sub>3</sub>) (KNNS-KBH-CZ) was chosen to fabricate multilayer piezoelectric actuators. The texturing degree of KNNS-KBH-CZ/CuO reaches as high as 75%, leading to a high strain performance (strain of 0.14%, <i>d</i> <sub>33</sub>* of 466 pm/V) under a low electric field (3 kV/mm), highlighting the potential application of KNN-based piezoelectric ceramics in the field of piezoelectric actuators.
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Search related cases →Original publication: https://europepmc.org/article/MED/40918338