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Enhanced piezoelectricity in CaBi2Nb2O9 high-temperature piezoelectric ceramics: low-temperature sintering and weak texturing.

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Title: Enhanced piezoelectricity in CaBi2Nb2O9 high-temperature piezoelectric ceramics: low-temperature sintering and weak texturing.
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]
Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Jan2025, Vol. 36 Issue 2, p1-16. 16p.
– Name: Abstract
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  Data: 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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  Data: <i>Copyright of Journal of Materials Science: Materials in Electronics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Jan2025
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