Ceramic pigments are the general name of the pigments used on ceramics, including glaze stain, underglaze stain and body stain. In the process of production, these pigments need to be calcined at different temperatures. The requirements for temperature are different according to different use of pigments.
In previous reports, pure and crystalline Mg1-xCoxAl2O4 powders were obtained only after annealing the as-prepared amorphous powders at high temperatures.
Few reports on this topic show that the preparation of same ceramic pigments involves annealing at 1400°C for 3h. Even applying new methods such as sonochemical synthesis requires heating treatment at 1000°C at least for 2 hours for the formation of pure cobalt aluminate spinel phase.
Generally, increasing temperature treatment increases the crystallite sizes of powders. So preparation of single phase spinel nanoparticles at lower temperatures is the advantage of our liquid combustion method and makes it technically simple and cost effective.
This article comes from cyberleninka edit released