In the present study, electrolytic in-process dressing grinding was performed on surgical steels (type 420J2 stainless steel) and the processing characteristics and resulting surface properties were evaluated. In particular, we used different grinding abrasives to investigate the effect of grinding parameters on the surface hydrophilicity of the processed workpieces. The results confirmed that surfaces processed with alumina abrasives have the highest hydrophilicities.

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CGO and ScSZ electrolyte materials were prepared by citrate Sol-Gel method and co-precipitation method, respectively. XRD, SEM and TEM analysis were made to check the phase composition and particle size of the sample. Cells with different electrolyte were prepared by co-pressing method. Single cell was tested with hydrogen as fuel. The OCV of the cell with ScSZ/CGO bilayer electrolyte were 1.02-1.05V, and the peak power densities were 197.3 and 108.8mW/cm^2 at 800 and 650℃, respectively, which were higher than that of the cell with single-layered CGO electrolyte. The performance of cell was raised effectively by ScSZ/CGO bilayer electrolyte.

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