Utilization Of Chromium Rutile As Enamel Colouring Pigment

Chromium and its common oxide and compounds are used as inorganic colouring material for most thermally stable materials like glass, glaze, ceramics, enamel, and most of silicate materials. The chromium rutile colour pigment which has the chemical formula mainly [Ti0.9Cr0.05Sb0.05 O2] acting as one of the important formula for colouring glaze or enamel. The colour effects are due to the relative ratio of the elements are consisting the overall prepared formula. The present investigation deals with the behavior of chromium rutile color pigment [Ti0.9Cr0.05Sb0.05] O2 on the coated surfaces at high temperatures. The results and the microscopically view of the prepared samples were identified with using light microscopy, UV/VIS spectroscopy, X-ray diffraction analysis (XRD) and EDX. Result of the present study shows that suitability of the used chromium rutile colour pigment which has the chemical formula as follows [Ti0.9Cr0.05Sb0.05 O2] as a colouring agent for the prepared enamel. It gives a different colouing view as yellow due to side reaction product. The blue colour effect of chromium rutile results from the ion colouration and also for contribution of the other components. The partial dissolution of the colour pigment grains makes the main colouring properties is considerable