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Thermal stability of yttria-stabilized zirconia (YSZ) and YSZ-Al2O3coatings
Song, Xuemei1; Liu, Ziwei1; Kong, Mingguang2; Lin, Chucheng1; Huang, Liping3; Zheng, Xuebin3; Zeng, Yi1,4
2017
Source PublicationCeramics International
ISSN02728842
Volume43Issue:16Pages:14321-14325
AbstractThe thermal insulation performance of yttria-stabilized zirconia (YSZ) and YSZ-Al2O3coatings deposited by atmospheric plasma spraying was evaluated using a thermal shock simulator, revealing the superiority of YSZ-Al2O3coatings due to their lower thermal conductivity. Furthermore, YSZ-Al2O3coatings were more thermally stable than YSZ ones, as determined by scanning electron microscopy, electron backscatter diffraction, and energy-dispersive X-ray spectroscopy analyses. Detailed investigations revealed that heating induces partial removal of Y from ZrO2, weakening its stabilization and thus leading to a martensitic phase transformation of metastable tetragonal zirconia (t′-ZrO2) into monoclinic zirconia (m-ZrO2). Conversely, in YSZ-Al2O3coatings, Al diffused into t′-ZrO2to further stabilize it by forming an YSZ-Al2O3solid solution, thus slowing down the above phase transformation. © 2017 Elsevier Ltd and Techna Group S.r.l.
DOI10.1016/j.ceramint.2017.07.186
EI Accession Number20173104011381
EI KeywordsYttria stabilized zirconia
EI Classification Number413.2 Heat Insulating Materials - 531.2 Metallography - 641.1 Thermodynamics - 804.2 Inorganic Compounds - 813.1 Coating Techniques - 813.2 Coating Materials
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Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/25623
Collection中国科学院上海硅酸盐研究所
Affiliation1.The State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
2.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei; 230031, China;
3.Key Laboratory of Inorganic Coating Materials, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai; 200050, China;
4.CAS Center for Excellence in Superconducting Electronics (CENSE), Shanghai; 200050, China
Recommended Citation
GB/T 7714
Song, Xuemei,Liu, Ziwei,Kong, Mingguang,et al. Thermal stability of yttria-stabilized zirconia (YSZ) and YSZ-Al2O3coatings[J]. Ceramics International,2017,43(16):14321-14325.
APA Song, Xuemei.,Liu, Ziwei.,Kong, Mingguang.,Lin, Chucheng.,Huang, Liping.,...&Zeng, Yi.(2017).Thermal stability of yttria-stabilized zirconia (YSZ) and YSZ-Al2O3coatings.Ceramics International,43(16),14321-14325.
MLA Song, Xuemei,et al."Thermal stability of yttria-stabilized zirconia (YSZ) and YSZ-Al2O3coatings".Ceramics International 43.16(2017):14321-14325.
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