High-alumina content compositions containing BaO-MgO-SiO.sub.2 g

Details High-alumina content compositions containing BaO-MgO-SiO.sub.2 g High-alumina content compositions containing BaO-MgO-SiO.sub.2 g

1974-01-02

1976-01-27

Curtis, Allen B.

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 52, 106 734, 161196, C04B 3326, C04B 3504

Patent

active

039350177

ABSTRACT:
The compositions of the present invention comprise alumina and minor proportions of a ternary glass sintering aid from the system: BaO-MgO-SiO.sub.2. The compositions can be sintered in a reducing atmosphere to provide ceramics which find particular utility in electrical devices, e.g., in multilayer ceramic sandwiches. The compositions are particularly amenable to formation by doctor blade slip casting techniques.

REFERENCES:
patent: 2760875 (1956-08-01), Schwartzwalder et al.
patent: 3019116 (1962-01-01), Doucette
patent: 3167438 (1965-01-01), Bristow
patent: 3238048 (1966-03-01), Somers
patent: 3501322 (1970-03-01), Dumbaugh, Jr. et al.
Phase Diagrams for Ceramists, Levin et al., Eds., 1969 Supplement, p. 127, Fig. 2458, Published by Am. Cer. Soc., Inc., (1969).

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