The ability of isovalent substitution of zinc and cobalt atoms in the structure of willemite Zn2SiO4 was studied, ceramic pigments with willemite structure of blue, violet and blue colors were synthesized. Samples of blue color were used in the manufacture of glazes. Synthetic silicon oxide was replaced by natural quartz sand in synthesizing the pigments.
The pigments were synthesized by solid-phase reactions at a temperature of 1270 ?C. The physical and chemical properties of the synthesized blue pigment used in the composition of traditional glazes for coloring ceramic products were determined. It is established that the synthesized blue pigment has high aesthetic and decorative characteristics at a relatively low cost price.
Umida A. Kodirova – doctoral student of lab. “Chemistry and Chemical Technology of Silicates”, Institute of General and Inorganic Chemistry Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
Zulayho R. Kadyrova – Doctor of Chemical Sciences, Professor, Head of lab. “Chemistry and Chemical Technology of Silicates”, Institute of General and Inorganic Chemistry Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
Fakhriddin G. Khomidov – PhD, senior researcher of lab. “Chemistry and Chemical Technology of Silicates”, Institute of General and Inorganic Chemistry Academy of Sciences of the Republic of Uzbekistan, Tashkent, Uzbekistan
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