Corrosion resistant plasma sprayed (Y0.8Gd0.2)3Al5O12/YSZ thermal barrier coatings towards molten calcium-magnesium-alumina-silicate
作者： Shiyu Sun , Zhaolu Xue , Wenting He , Jian He , Qiushi Li
DOI: 10.1016/J.CERAMINT.2019.01.114
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摘要: Abstract Chemical reaction between (Y 0.8 Gd 0.2) 3 Al 5 O 12 (GYAG) and calcium-magnesium-alumina-silicate (CMAS) with four different compositions was investigated. The GYAG revealed excellent chemical stability with molten CMAS even after 24 h heat-treatment at 1250° C. A GYAG layer was sprayed onto an yttria stabilized zirconia (YSZ) thermal barrier coating (TBC) by plasma spray and the thermal cycling behavior and resistance to CMAS corrosion of the coating system were researched. The GYAG/YSZ TBC …
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