Effect of Y2O3 doping content on phase composition, mechanical properties and cavitation erosion performance of ZrO2 ceramics

Zhu, Xiaoxia; Hou, Guoliang; Ma, Junkai; Zhang, Xiaoyu; An, Yulong; Zhou, Huidi; Chen, Jianmin; Li, Wensheng

doi:10.1016/j.ceramint.2024.01.385

Ceramics International

2024

DOI: 10.1016/j.ceramint.2024.01.385

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Effect of Y2O3 doping content on phase composition, mechanical properties and cavitation erosion performance of ZrO2 ceramics

Xiaoxia Zhu,

Guoliang Hou,

Junkai Ma

et al.

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2024

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Influence of Y2O3 Doping on Phase Evolution and Dielectric Characteristics of ZrO2 Ceramics

Gao,

Shao,

Xin

et al. 2024

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Improvements in phase stability and dielectric characteristics can broaden the applications of zirconia in ceramics. Herein, a series of Y2O3-stabilized zirconia (YSZ) ceramics are synthesized using solid-state sintering, followed by an investigation into their phase evolution, grain size, dielectric constant, and breaking field. As the Y2O3 content increases from 0 wt% to 4 wt%, the as-grown YSZ ceramics undergo a distinct phase transformation, transitioning from monoclinic to monoclinic + tetragonal and further to monoclinic + tetragonal + cubic, before finally returning to monoclinic + cubic. Significant changes occur in the internal microstructure and grain size of the ceramics as the phase composition alters, resulting in a reduction in grain size from 3.17 μm to 0.27 μm. Moreover, their dielectric constants exhibit an increasing trend as the Y2O3 content increases, rising from 3.92 to 13.2. Importantly, the dielectric breakdown field of these YSZ ceramics shows a similar variation to the phase evolution, ranging from 0.11 to 0.15 MV/cm. This study sheds light on the phase evolution and dielectric properties of YSZ ceramics, offering an efficient strategy for enhancing their dielectric performances.

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Influence of Y2O3 Doping on Phase Evolution and Dielectric Characteristics of ZrO2 Ceramics

Gao,

Shao,

Xin

et al. 2024

Micromachines

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show abstract

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Effect of Y2O3 doping content on phase composition, mechanical properties and cavitation erosion performance of ZrO2 ceramics

Cited by 1 publication

References 44 publications

Influence of Y2O3 Doping on Phase Evolution and Dielectric Characteristics of ZrO2 Ceramics

Influence of Y2O3 Doping on Phase Evolution and Dielectric Characteristics of ZrO2 Ceramics

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