Abstrakt:
The purpose of this work was to prepare non-traditional cobalt pigment with blue colouring with a minimum content of cobalt. Moreover, in the case of incorporation of the pigment into the vitreous surface of leadless glaze, there is only minimum change of the contamination of the environment. For the synthesis of these compounds the classical ceramic method was used. This method is based on the solid state reaction. Older ceramic methods of the solid state reaction phase were carried out only with one calcination temperature. However, the late works emphasize the appropriateness of the use of multiple calcination procedures for obtaining of products with higher quality. Therefore, the objective of this work was to compare samples, which were prepared not only by one-step calcination but also by two-step calcination procedure.
