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The results of producing cobalt-bearing spinels of a blue-sky to blue color range by self-propagating high-temperature synthesis (SHS) are described. The effect of the conditions of synthesis and the mixture composition on the structure of compounds obtained is demonstrated. The SHS method makes it possible to obtain spinels that can be used as ceramic pigments.One of the methods for producing pigments of the spinel type for ceramic paints and glazes is self-propagating hightemperature synthesis (SHS). It is based on using the heat from exothermic reactions and is faster and more cost-efficient than traditional methods.The purpose of the present paper is to obtain pigments of the spinel type by SHS and to study the effect of the initial composition and conditions of synthesis on the structure formation processes.Pigments were synthesized using Al 2 O 3 , Co 2 O 3 , ZnO, MgO, and aluminum powder ASD-4. Synthesis was performed in a constant-pressure plant in an argon atmosphere and in air. The obtained pigments were identified by x-ray phase analysis on a DRON-UM1 diffractometer (filtered CoK a radiation) and infrared spectroscopy in the range of 1400 -400 cm -1 on a Nicolet 5700 IR-Fourier diffractometer with a diffuse reflection device in KBr. The microstructure of samples was studied using light microscopy (Axiovert 200M).Blue pigments were obtained in the CoO -Al 2 O 3 system. According to the x-ray phase analysis data, the products of synthesis performed in the argon atmosphere contain, besides aluminocobalt spinel CoAl 2 O 4 , also a substantial amount of corundum (Al 2 O 3 ). Furthermore, the products contain metallic cobalt and Co(AlO 2 ) 2 . The IR spectroscopic analysis 2 indicates the formation of a mixed spinel (Fig. 1, curve 1 ) in the system, since in addition to the octahedral aluminum atom [AlO 6 ] whose vibrations are manifested at 560.0 cm -1 , which is typical of normal spinels, we observed also absorption bands of the tetrahedral atom [AlO 4 ] at 624.5 cm -1 , which is present in inverse spinels. Moreover, there is an intense absorption band at 1088.9 cm -1 related to the vibrations of the ion (AlO 2 ) -[1 -3].Synthesis performed in the air atmosphere produces pigments with better color characteristics, which is directly related to their composition and structure. The modification of the structure is clearly visible in the IR spectra of the pigments. Thus, the absorption bands at 886.1, 979.5, and

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with aluminum powder ASD-4 and MgO and ZnO additives by the method of self-propagating high-temperature synthesis (SHS) is investigated. A blue and an ultramarine pigment are obtained. Their phase composition, IR spectra, and structural and color characteristics are studied. It is demonstrated that the SHS method is promising for producing heat-resistant spinel-type pigments of a blue-sky-blue color range.