Abstract
SiC-coatings derived from pyrolysis of polycarbosilane layers on stainless steel and mild steel substrates have been studied using a combination of scanning electron microscopy (SEM), energy dispersive X-ray analysis, X-ray photoelectron spectroscopy and ultramicrohardness techniques. The coatings on mild steel plates at firing temperatures of 700°C are cracked but uncracked SiC coatings can be formed on stainless steel substrates at 700-800°C. X-ray photoelectron studies show that these coatings are covered with a layer of SiO 2 and contain graphitic carbon, while Rutherford backscattering studies indicate inhomogeneities in the coating layer due to mixing of substrate and coating components at the interface between the two (...)
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