High zirconia fused cast refractory

Details High zirconia fused cast refractory High zirconia fused cast refractory

1993-05-28

1994-09-06

Group, Karl

Compositions: ceramic

Ceramic compositions

Refractory

501103, C04B 3548

Patent

active

053448014

ABSTRACT:
A high zirconia fused cast refractory which comprises from 90 to 95% by weight of ZrO.sub.2, from 3.5 to 7% by weight of SiO.sub.2, from 1.2 to 3% by weight of Al.sub.2 O.sub.3 and from 0.1 to 0.35% by weight in a total amount of Na.sub.2 O and/or K.sub.2 O, and which does not substantially contain any one of P.sub.2 O.sub.5, B.sub.2 O.sub.3 and CuO.

REFERENCES:
patent: 2271367 (1942-01-01), Fulcher et al.
patent: 2271369 (1942-01-01), Fulcher et al.
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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