Plasma-sprayed chromium oxide: control of mechanical properties using infrared specular reflection

The infrared reflection spectra of Cr₂O₃ samples prepared by the plasma-spray technique are analyzed using the Kramers-Kronig method. As the degree of orientation of the crystalline surface, and hence its mechanical properties, depends on the deposition conditions, infrared reflection spectroscopy provides a convenient method of controlling the quality of plasma-sprayed deposits.