氧化钇稳定氧化锆
热障涂层
材料科学
立方氧化锆
摩擦学
钇
复合材料
使用寿命
表面粗糙度
温度循环
涂层
陶瓷
冶金
热的
氧化物
物理
气象学
作者
Pushpak Banerjee,Avinava Roy,Soumyadeep Sen,Arkajit Ghosh,G. Saha,Asiful H. Seikh,Ibrahim A. Alnaser,Manojit Ghosh
出处
期刊:Heliyon
[Elsevier]
日期:2023-05-01
卷期号:9 (5): e16107-e16107
被引量:2
标识
DOI:10.1016/j.heliyon.2023.e16107
摘要
Countless research has suggested Yttria-stabilized Zirconia (YSZ) to be a top candidate for being implemented as thermal barrier coatings (TBC). However, when exposed to prolonged service, temperature and stress variations succeed in initiating a catastrophic phase transformation from tetragonal to monoclinic structure in Zirconia. Hence, the estimation of endurance for YSZ-based TBC is necessary to minimize failure in such situations. The main purpose of this research was to determine the relationship between tribological investigations and the estimated lifespan of YSZ coatings accurately. The study used various methods such as wear resistance testing, optical profilometry, specific wear rate, and coefficient of friction to estimate the maximum durability of TBCs. The research also provided insights into the composition and microstructure of the TBC system and found the optimized concentration of Yttrium doping to be 3.5 wt %. The study discovered that erosion was the main cause of roughness depreciation from SN to S1000. The estimation of the service life was primarily made based on optical profilometry, specific wear rate (SWR), coefficient of friction (COF) and wear resistance values which were further supported by the results of chemical characterization of the samples through electron dispersive spectroscopy (EDS), wavelength dispersive spectroscopy (WDS) and X-Ray Diffraction (XRD) analysis. The results were reliable and accurate and suggested future areas of investigation, such as 3D profilometry for surface roughness and thermal conductivity evaluation using laser-assisted infrared thermometers.
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