MIXTURE FOR MANUFACTURING REFRACTORY ARTICLES Russian patent published in 1997 - IPC

FIELD: manufacturing the refractory articles, particularly, production of carbide- and silicium-containing refractory articles (for example, melting crucible). SUBSTANCE: mixture for manufacturing of refractory articles comprises, mas. %: silicium carbide, 32-40; refractory clay, 13-20; alumina, 15-25; electrocorundum, 10-17; kaolin, 3-15; aluminium oxychlorite, 0.5-4.5; oxide of rare-earth element, 0.5-4.5. Oxide of rare-earth element is chosen of La₂O₃, Na₂O₃, Gd₂O₃. EFFECT: increased operation period of articles by increasing their resistance by affection of metal melts on the base of Ni or Co. 2 tbl