Base metal resistor

Details Base metal resistor Base metal resistor

1986-04-07

1987-10-06

Pertilla, Theodore E.

Stock material or miscellaneous articles

Composite

Of quartz or glass

338308, 428427, 428428, 428433, 428446, 428451, 428463, 428467, 428469, 428522, 428523, 428697, 428701, 428702, B32B 1706

Patent

active

046982655

ABSTRACT:
Base metal resistive paints, resistors made therefrom and method for making the resistive paint are disclosed. The base metal resistive paints comprise 20 to 25% tantala glass frit and 75 to 80% tin oxide, ground to a particle size of ten microns or less; and well mixed with 25 to 35% screening agent for subsequent screening upon a suitable substrate, and firing in an inert atmosphere at a peak temperature of about 900.degree. C. The tantala glass frit preferably comprises 5 to 25% tantatum oxide. The tin oxide is preferably preheated at 450.degree. to 600.degree. C. in the presence of a reducing gas, prior to mixing with the tantala glass frit. The screening agent preferably forms no carbon residue when pyrolytically decomposed in an inert atmosphere during firing.

REFERENCES:
patent: 4215020 (1980-07-01), Wahlers
patent: 4379195 (1983-04-01), Prabhu et al.
patent: 4397915 (1983-08-01), Wahlers et al.

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