Magnesium aluminate spinel bond for refractory brick

Details Magnesium aluminate spinel bond for refractory brick Magnesium aluminate spinel bond for refractory brick

1977-09-15

1978-11-21

McCarthy, Helen

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 59, C04B 3504

Patent

active

041264797

ABSTRACT:
A magnesium aluminate spinel-bonded refractory can be formed which does not exhibit undue expansion (due to the reaction of magnesia and alumina to form magnesium aluminate spinel) between the raw, compacted state and the fired, ceramically bonded state when fired to a temperature of 1400.degree. C if a very finely divided alumina with dense particles is used. More specifically, the alumina used has an average particle size of less than 5, preferably less than 2, microns, and a specific surface of less than 30 m.sup.2 /g, preferably about 5 m.sup.2 /g (i.e., the small crystallites or particles are dense and do not have a high surface area, as do finely divided active aluminas).

REFERENCES:
patent: 2775525 (1956-12-01), Austin et al.
patent: 3184322 (1965-05-01), Parikh et al.
patent: 3954488 (1976-05-01), Coatney
patent: 4045234 (1977-08-01), Ring
Bailey, J. T., et al. "Magnesia-Rich MgAw.sub.2 O.sub.4 Spinel Ceramics" Amer. Cer. Soc. Bull. (1971) 50(5) pp.493-496.

Affiliated with

Also associated with

Rating

Magnesium aluminate spinel bond for refractory brick does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Magnesium aluminate spinel bond for refractory brick, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnesium aluminate spinel bond for refractory brick will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2047921