Beta-alumina electrocast refractories

Details Beta-alumina electrocast refractories Beta-alumina electrocast refractories

1996-09-11

1998-03-31

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501153, 110338, C04B 35113

Patent

active

057338302

ABSTRACT:
A .beta.-alumina electrocast refractory formed of a composition of 91-95 wt. % of Al.sub.2 O.sub.3, 2.0 wt. % or less of K.sub.2 O, 4.0-7.0 wt. % of Na.sub.2 O and K.sub.2 O in total, 0.15-2.0 wt. % of BaO, SrO and CaO in total, and 0.1 wt. % or less of Fe.sub.2 O.sub.3 and TiO.sub.2 in total.

REFERENCES:
patent: 2043029 (1936-06-01), Blau et al.
patent: 4139394 (1979-02-01), Esnoult et al.
patent: 4797269 (1989-01-01), Bauer et al.
patent: 4937214 (1990-06-01), Morita et al.
patent: 5028572 (1991-07-01), Kim et al.
patent: 5188994 (1993-02-01), Schikawa et al.
patent: 5229340 (1993-07-01), Nemoto
patent: 5612154 (1997-03-01), Kajita et al.

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