A new ceramic pigment of black color was developed based on the CoO - Fe 2 O 3 system at low synthesis temperatures (1000 - 1200 ° C). The optimal temperature range for the spinel formation reaction in the indicated oxide system has been established. The resulting pigment, when introduced during grinding into a raw glaze for sanitary porcelain, provides glaze coatings characterized by an intense and stable black color in a fairly wide range of firing temperatures. Tab. 2, ill. 2, bibliography: 9 titles.
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