AI Article Synopsis
- Researchers improved the piezoelectric constant (d33) of potassium-sodium niobate while maintaining a high Curie temperature (TC) by developing a new material system.
- The designed composition, 0.992(K0.46Na0.54)0.965Li0.035Nb(1-x)Sb(x)O3-0.008BiScO3, exhibited uniform chemical distribution and different grain sizes due to the addition of Sc.
- The optimized ceramic sample (x = 0.025) achieved impressive d33 ≈ 325 pC/N and TC ~358 °C, indicating its potential for high-temperature piezoelectric applications.
Article Abstract
For potassium-sodium niobate, the piezoelectric constant (d33) was usually improved by sacrificing the Curie temperature (TC). In this work, a material system of 0.992(K0.46Na0.54)0.965Li0.035Nb(1-x)Sb(x)O3-0.008BiScO3 has been designed and prepared with the aim of achieving both a large d33 and a high TC at the same time. The chemical compositions are found to be homogeneously distributed in the ceramics. The introduction of Sc is found to be responsible for different grain sizes. The rhombohedral-tetragonal phase coexistence zone lies in the composition range of 0.02
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http://dx.doi.org/10.1021/am403448r DOI Listing Publication Analysis
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