CHARACTERIZATION OF PLASMA-SPRAYED CHROMIUM OXIDE COATING
Keywords:
Plasma-sprayed Cr2O3 coating; Micro hardnessAbstract
A plasma-sprayed chromium oxide coating was developed to attain better tribological properties and wear
performance. A smooth surface films were formed by plastic deformation of the coating. The significant amount of CrO3
was detected at room temperature though CrO2was distinguished at 4508C. CrO2 in the smooth film appears to be ideal
than CrO3 in increasing microhardness and wear performance. The dominant species with carbon-related bonds in the
film was distinguished as graphite at both room temperature and high temperature. Among the compound formed in the
film, graphite appears, to be most critical in determine the micro hardness of the film