Enhanced piezoelectricity in CaBi2Nb2O9 high-temperature piezoelectric ceramics: low-temperature sintering and weak texturing.
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| Title: | Enhanced piezoelectricity in CaBi |
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| Authors: | Wang, Z. P.1,2 (AUTHOR), Pan, C. B.3,4 (AUTHOR), Yin, L. H.1 (AUTHOR), Song, W. H.1 (AUTHOR), Zhu, X. B.1 (AUTHOR), Yang, J.1 (AUTHOR) jyang@issp.ac.cn, Sun, Y. P.1,5,6 (AUTHOR) |
| Source: | Journal of Materials Science: Materials in Electronics. Jan2025, Vol. 36 Issue 2, p1-16. 16p. |
| Abstract: | The effect of CeO2 sintering aid on the microstructural and electrical properties of CaBi2Nb2O9 ceramics was studied. The addition of CeO2 facilitates a reduction in the sintering temperature of CaBi2Nb2O9, improve the grain morphology, increase the relative density, and induce the c-axis oriented growth of some grains. The incorporation of some Ce ions into the B-sites of [NbO6] octahedra results in an increased tetragonal distortion, and therefore significantly affects the electrical properties of the ceramics. The sample with 0.6 wt% CeO2 exhibits an optimal performance with a large remanent polarization (Pr = 18.5 μC/cm2) and a piezoelectric coefficient (d33 = 20.8 pC/N). The results indicate that adding CeO2 as a sintering aid is an effective strategy for enhancing the performance of CaBi2Nb2O9 ceramics. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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