Abstract

AbstractThis study deals with the microstructure evaluation and analysis of surface uniformity of Mn1.0Co1.9Fe0.1O4 (MCF) spinel coating deposited by atmospheric plasma spray (APS) on Crofer 22 APU used in solid oxide fuel cells applications. 3-D confocal profilometer and SEM (EDS) have been used to examine the quality of surface, microstructure, and chemical composition. The 3-D analysis of the coated surface showed the variation in uniformity of ridges and grooves of the coated Crofer steel. The microstructure analysis using a scanning electron microscope (SEM) revealed the partially melted particles and microcracks networks.KeywordsAtmospheric plasma spray (APS)Spinel coatingsSolid oxide fuel cells (SOFC)Metallic interconnect3-D confocal profilometerSurface isotropy

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