8YSZ热障涂层的大气等离子喷涂性能研究

IF 1 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Digest Journal of Nanomaterials and Biostructures Pub Date : 2023-10-30 DOI:10.15251/djnb.2023.184.1275

J. J. Li, Y. F. Zhang, Q. Li, Q. Hao, X.Y. Ran, X. L. Guo

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引用次数: 0

摘要

采用常压等离子喷涂(APS)法制备了8wt %氧化钇部分稳定氧化锆(8YSZ)涂层。对涂层的组织和性能进行了分析。结果表明，8YSZ涂层整体形貌光滑。XRD谱图表明，8YSZ涂层没有发生相变，具有稳定的四方相。8YSZ热障涂层(TBC)经过70次热循环测试后保持完整。有限元结果表明，8YSZ TBC具有良好的保温性能。动电位极化和电化学阻抗谱分析表明，该涂层具有良好的耐蚀性。

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Study on the properties of 8YSZ thermal barrier coatings by atmospheric plasma spraying

The 8 wt.% yttrium oxide partially stabilized zirconia (8YSZ) coatings were prepared by atmospheric plasma spraying (APS). The microstructure and properties of the coating were analyzed. The results show that the overall morphology of 8YSZ coating is smooth. The XRD pattern shows that the 8YSZ coating don’t undergo phase transformation and has a stable tetragonal phase. 8YSZ thermal barrier coating (TBC) remains intact after 70 thermal cycle tests. The finite element results show that the 8YSZ TBC has good thermal insulation. Potentiodynamic polarization and electrochemical impedance spectroscopy show that the coating has good corrosion resistance.

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