High zirconia fused cast refractories

Details High zirconia fused cast refractories High zirconia fused cast refractories

1994-02-01

1995-11-14

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501103, 501127, 501128, 501133, 501107, C04B 3548, C04B 35484

Patent

active

054666430

ABSTRACT:
High zirconia fused cast refractories which include as chemical components of refractories in weight %, 85 through 91% of ZrO.sub.2, 7.0 through 11.2% of SiO.sub.2, 0.85 through 3.0% of Al.sub.2 O.sub.3, 0.05 through 1.0% of P.sub.2 O.sub.5, 0.05 through 1.0% of B.sub.2 O.sub.3 and 0.01 through 0.12% of a summed amount of K.sub.2 O and Na.sub.2 O, wherein the weight % of K.sub.2 O is not smaller than the weight % of Na.sub.2 O.

REFERENCES:
patent: 3632359 (1972-01-01), Alper et al.
patent: 4336339 (1982-06-01), Okumiya et al.
patent: 4705763 (1987-11-01), Hayashi et al.
patent: 5023218 (1991-06-01), Zanoli et al.
patent: 5086020 (1992-02-01), Ishino et al.

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