FIELD: ceramic industry.
SUBSTANCE: invention relates to production of spinel-type ceramic pigments. Method for preparing spinel-type ceramic pigments is carried out by thoroughly mixing mixture containing, wt%: aluminium hydroxide, Al(OH)3 40.0-60.0, powdered aluminium Al 5.0-7.0, zinc oxide ZnO 0-20.0, 5.0-45.0 dye. Mixture is heated to 500 °C. Thermosynthesis is carried out in mode of locally initiated stratified combustion. Dye is taken separately or in a combination of oxides of transition metals chromium, cobalt, nickel, iron.
EFFECT: technical result consists in expansion of colour palette of pigments and reduction of dimensions to micro range.
2 cl, 1 dwg, 1 tbl, 3 ex
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