Оbtaining of Сeramic Рigments Suitable forSilicate Industry

Abstract

Thisstudy shows the possibility to synthesis ceramic pigments  via solid-state high temperature sintering. The preparation of hightemperature ceramic pigments using colourless stable crystal carcasses turnsout to be quite suitable method in the case of ZrSiO4 and theircolouring by introducing different chromophores. The paper reports forexperiments carried out on the synthesis of zircon pigments with theparticipation of following chromophore ions: Fe3+, Co2+,Ni2+ using the technology of solid phase sintering. Many analyseswere used to determine the phase composition and check the chromophore ionsvalency state at temperature higher than the optimal temperature of synthesis.The colour of the pigments was determined using a Lovibond Tintometer RT 100Color. The willemiteceramic pigments and rice husk ash were studied by X-ray analysis,  scanning electron microscopy (SEM). It hasbeen found that the synthesized pigments are suitable and can be successfullyapplied in glaze tiles and sanitary ceramics.The results obtained indicatedthat it depends on the sintering temperature isothermal soaking and the type ofchromophore ion. In most pigments, the basic phase was obtained as low as 900 -10000C. The best pigments obtained were added to white faienceglaze.