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Materials processing with chemical oxygen-iodine laser: ceramic cladding for stainless steel substrate

This paper examines the use of chemical oxygen-iodine laser (COIL) for depositing ceramic coating on a substrate. The cladding experiments were conducted in the environment of nitrogen gas, and the laser beam was focused to a rectangular spot with large aspect (length to width) ratio. The beam was scanned by keeping the length of the spot aligned to the transverse direction. Optical micrographs are presented for the morphology of the clad surface and the cross section of the cladding zone.