Enhancement of piezoelectric properties of CaBi2Nb2O9 ceramics by Ce doping and direct reaction sintering

Tan, Junhui; Huang, Rongxia; Lin, Hua-Tay; Liu, Kai; Xie, Tianbao; Dai, Yejing

doi:10.1016/j.ceramint.2024.04.317

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.04.317

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Enhancement of piezoelectric properties of CaBi2Nb2O9 ceramics by Ce doping and direct reaction sintering

Junhui Tan,

Rongxia Huang,

Hua-Tay Lin

et al.

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Cited by 3 publications

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Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Wang,

Yu,

Min

et al. 2024

Ceramics International

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Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Wang,

Yu,

Min

et al. 2024

Ceramics International

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Enhancement of piezoelectric properties and temperature stability of high-Curie temperature CaBi2Nb2O9 ceramics

Zhang,

Yu,

et al. 2025

Journal of the European Ceramic Society

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Superior Piezoelectric Performance in Textured CaBi₂Nb₂O₉ Ferroelectric Ceramics through Rare-Earth Gadolinium Doping and Spark Plasma Sintering

Chen,

Pei,

Liu

et al. 2024

ACS Appl. Mater. Interfaces

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High-performance piezoelectric ceramics with excellent thermal stability are crucial for high-temperature piezoelectric sensor applications. However, conventional fabrication processes offer limited enhancements in piezoelectric performance. In this study, we achieved a significant breakthrough in the piezoelectric performance of highly textured CaBi 2 Nb 2 O 9 (CBN) ceramics by incorporating rare-earth gadolinium doping and utilizing spark plasma sintering. The resulting Ca 0.97 Gd 0.03 Bi 2 Nb 2 O 9 (CBN-3Gd) ceramics exhibited superior piezoelectric properties, with a high piezoelectric constant d 33 of 26 pC/N and a high Curie temperature T C of 946 °C. We employed piezoresponse force microscopy (PFM) to observe the morphology and dimensions of the ferroelectric domains, revealing a rod-shaped 3D domain configuration. This configuration facilitated polarization rotation in the textured ceramics, as analyzed using X-ray photoelectron spectroscopy (XPS) and polarization−electric field (P−E) hysteresis loops. Furthermore, the textured CBN-3Gd ceramics demonstrated exceptional thermal stability and reliability. The piezoelectric constant d 33 decreased by only 11.8% over a temperature range of room temperature to 500 °C, and the DC electrical resistivity remained at 6.7 × 10 5 Ω cm at 600 °C. This work not only highlights the great potential of textured CBN-based ceramics for high-temperature piezoelectric sensors but also provides a viable strategy for enhancing the performance of piezoelectric materials with large aspect ratio micromorphology. KEYWORDS: calcium bismuth niobate (CaBi 2 Nb 2 O 9 ), bismuth layer-structured ferroelectrics (BLSFs), high-temperature piezoelectric ceramics, textured ceramics, spark plasma sintering (SPS)

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Enhancement of piezoelectric properties of CaBi2Nb2O9 ceramics by Ce doping and direct reaction sintering

Cited by 3 publications

References 49 publications

Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Enhancement of piezoelectric properties and temperature stability of high-Curie temperature CaBi2Nb2O9 ceramics

Superior Piezoelectric Performance in Textured CaBi₂Nb₂O₉ Ferroelectric Ceramics through Rare-Earth Gadolinium Doping and Spark Plasma Sintering

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Enhancement of piezoelectric properties of CaBi2Nb2O9 ceramics by Ce doping and direct reaction sintering

Cited by 3 publications

References 49 publications

Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Co-doping Ce3+ and Mn4+ to induce pseudo tetragonal distortion in CaBi2Nb2O9 for improved piezoresponse

Enhancement of piezoelectric properties and temperature stability of high-Curie temperature CaBi2Nb2O9 ceramics

Superior Piezoelectric Performance in Textured CaBi2Nb2O9 Ferroelectric Ceramics through Rare-Earth Gadolinium Doping and Spark Plasma Sintering

Contact Info

Product

Resources

About

Superior Piezoelectric Performance in Textured CaBi₂Nb₂O₉ Ferroelectric Ceramics through Rare-Earth Gadolinium Doping and Spark Plasma Sintering