FIELD: chemistry.
SUBSTANCE: invention relates to refractory articles based on zirconium dioxide, which can be used in glass-melting tank furnaces and in steel-casting industry as vessels for continuous steel casting, as slide plates and as wearing components in zones under extra high load. The refractory article cast from melt consists of zirconium dioxide, whose crystals are stabilised with magnesium oxide and are surrounded by at least one magnesium oxide-containing crystalline phase. Magnesium oxide-containing crystalline phases and magnesium oxide account for 0.5-10 wt % and 1-10 wt % of the total weight of the refractory article, respectively. The magnesium oxide-containing crystalline phase is forsterite, enstatite, cordierite or spinel.
EFFECT: obtaining articles in which there are no shrinkage cavities, having high corrosion and wear resistance.
7 cl, 2 ex, 1 dwg
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