Glasses and overglaze inks made therefrom

Details Glasses and overglaze inks made therefrom Glasses and overglaze inks made therefrom

1990-11-21

1992-06-23

Group, Karl

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 8, 501 26, 501 69, 501 70, 501 73, 428426, 428432, C03C 804

Patent

active

051242826

ABSTRACT:
A novel devitrifying glass comprising, in weight percent, from 5-15% of zinc oxide, from 10-18% of magnesium oxide; from 15-20% of calcium oxide; from 6-14% of barium oxide; from 15-20% of aluminum oxide and from 30-40% of silicon dioxide. The glasses are thermally matched to alumina substrates. The glasses form overglaze thick film inks when admixed with an organic vehicle that are useful as protective coatings for alumina substrates and multilayer printed circuits.

REFERENCES:
patent: 4376725 (1983-03-01), Prabhu et al.
patent: 4624934 (1986-11-01), Kokubu et al.
patent: 4788163 (1988-11-01), Hang et al.
patent: 4808673 (1989-02-01), Hang et al.
patent: 4808770 (1989-02-01), Prabhu et al.
patent: 4816615 (1989-03-01), Prabhu et al.
patent: 4874550 (1989-10-01), Prabhu et al.
patent: 4880567 (1989-11-01), Prabhu et al.
patent: 4997795 (1991-03-01), Hang et al.

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