Platinum corrosion reducing premelted oxide compositions for lea

Details Platinum corrosion reducing premelted oxide compositions for lea Platinum corrosion reducing premelted oxide compositions for lea

1986-04-07

1987-09-29

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 76, 501 27, 501 15, 501 17, 501 22, C03C 3072, C03C 824

Patent

active

046969098

ABSTRACT:
Platinum corrosion reducing amounts of a premelted oxide mixture that is PbO and B.sub.2 O.sub.3, or PbO and SiO.sub.2, or PbO, SiO.sub.2 and B.sub.2 O.sub.3 are added to raw batch ingredients for a lead-containing solder glass. All or part of the Pb.sub.3 O.sub.4 or PbO normally used in the raw batch is replaced for advantages including reducing the amount of platinum corrosion in a platinum melter used to melt the raw batch to provide the glass.

REFERENCES:
patent: 108598 (1937-09-01), Gallup
patent: 2033103 (1932-03-01), Beyersdorfer
patent: 2511228 (1950-06-01), Sun et al.
patent: 3942993 (1976-03-01), La Grouw et al.
patent: 3947279 (1976-03-01), Hudecek
patent: 3973975 (1976-08-01), Francel et al.
patent: 4522925 (1985-11-01), Pirooz

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