Improvement strategy on thermophysical properties of A2B2O7-type rare earth zirconates for thermal barrier coatings applications: A review

Peng, Zijian; Wang, Yuhao; Wang, Shuqi; Yao, Junteng; Zhao, Qingyuan; Xie, Enyu; Chen, Guoliang; Wang, Zhigang; Liu, Zhanguo; Wang, Yaming; Ouyang, Jiahu

doi:10.1007/s12613-024-2853-4

Int J Miner Metall Mater

2024

DOI: 10.1007/s12613-024-2853-4

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Improvement strategy on thermophysical properties of A2B2O7-type rare earth zirconates for thermal barrier coatings applications: A review

Zijian Peng,

Yuhao Wang,

Shuqi Wang

et al.

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2024

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Cited by 3 publications

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High-pressure behavior of high-entropy A2B2O7 pyrochlore

Matović,

Belozerova,

Kozlenko

et al. 2024

Ceramics International

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High-pressure behavior of high-entropy A2B2O7 pyrochlore

Matović,

Belozerova,

Kozlenko

et al. 2024

Ceramics International

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Corrosion resistance of high entropy rare earth zirconate ceramic to CMAS

Wang,

He,

Yang

et al. 2024

Ceramics International

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Improving Corrosion Resistance of Rare Earth Zirconates to Calcium–Magnesium–Alumina–Silicate Molten Salt Through High-Entropy Strategy

Gui,

Peng,

Yao

et al. 2024

Materials

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The erosion caused by high-temperature calcium–magnesium–alumina–silicate (CMAS) has emerged as a critical impediment to the advancement of thermal barrier coating (TBC). In this study, a series of high-entropy rare earth zirconates, (La0.2Sm0.2Dy0.2Er0.2Gd0.2)2(Zr1−xCex)2O7 (x = 0, 0.2, 0.4, 0.5) were synthesized through a solid-phase reaction, and their corrosion behavior against CMAS was investigated. Our findings demonstrate that numerous rare earth elements impede element diffusion, facilitate the formation of a compact oxide layer, and effectively hinder CMAS infiltration. Furthermore, rare earth elements with larger ionic radii exhibit enhanced solubility in apatite, whereas those with smaller ionic radii are more readily soluble in ZrO2. In general, the utilization of the high-entropy strategy is an effective approach to significantly improving corrosion resistance against CMAS.

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Improvement strategy on thermophysical properties of A2B2O7-type rare earth zirconates for thermal barrier coatings applications: A review

Cited by 3 publications

References 133 publications

High-pressure behavior of high-entropy A2B2O7 pyrochlore

High-pressure behavior of high-entropy A2B2O7 pyrochlore

Corrosion resistance of high entropy rare earth zirconate ceramic to CMAS

Improving Corrosion Resistance of Rare Earth Zirconates to Calcium–Magnesium–Alumina–Silicate Molten Salt Through High-Entropy Strategy

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