Plastically deformable magnesia

Details Plastically deformable magnesia Plastically deformable magnesia

1975-03-19

1976-05-04

McCarthy, Helen M.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 58, 106 60, C04B 3504, C04B 3544

Patent

active

039544885

ABSTRACT:
A composition capable of being plastically deformed at high temperatures contains at least 98% MgO, less than 0.1% B.sub.2 O.sub.3, and, as principal subsidiary components, CaO, SiO.sub.2, and Al.sub.2 O.sub.3. Based on the total weight of the subsidiary components, there is about 65% CaO, from 25 to 33% SiO.sub.2, and from 10 to 2% Al.sub.2 O.sub.3. The composition is preferably substantially free of iron, but in any case the weight of Fe.sub.2 O.sub.3 is no more than one-tenth the weight of Al.sub.2 O.sub.3.

REFERENCES:
patent: 2999759 (1961-09-01), Hever
patent: 3666851 (1972-05-01), Chaklader
patent: 3676079 (1972-07-01), Morgan
patent: 3713855 (1973-01-01), Wright
patent: 3754951 (1973-08-01), Coatney
patent: 3833390 (1974-09-01), Staut et al.
patent: 3852080 (1974-12-01), Davies et al.

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