HUANG Liqun, PENG Wen, WANG Yanxiang
(Jingdezhen Ceramic Institute, Jingdezhen 333403)
Abstract:Silicon-iron-peach ceramic pigment was fabricated by solid-phase method, using SiO2 and Fe2O3 as raw materials.The influence of SiO2/Fe2O3 mass ratio, Fe2O3 sources, calcining temperatures, mineralizers and coloring aids on the color of the obtained pigments were systematically investigated. The as-prepared samples were characterized by XRD, colorimeter and SEM. Experimental results show that the red a -value is 12.51, when the SiO2:Fe2O3 (mass ratio) was 85:15. The optimum firing temperature was 1100℃. The red a-value is 22.31 with Fe (NO3)3·9H2O as the source of Fe2O3. The mixture of Na2SiF6 and LiF to the mass ratio of 2:1 is the most effective mineralizer. La (NO3)3 is more beneficial to improving the reda-value of the pigments.
Keywords:solid-phase method, silicon-iron-peach, ceramic pigment