Ceramic electrical resistor

Details Ceramic electrical resistor Ceramic electrical resistor

1974-02-04

1976-12-07

Lechert, Jr,, Stephen J.

Compositions

Electrically conductive or emissive compositions

Metal compound containing

252518, 252519, 252521, H01B 106

Patent

active

039961680

ABSTRACT:
Ceramic electrical resistors having a positive temperature-resistance coefficient, consisting of barium titanate with an atomic excess of titanium, and having a ferroelectric perowskite structure, the resistor being conductive by the presence therein of a rare earth dopant, the resistor also containing one or more of the following elements: cobalt, chromium, nickel, vanadium, manganese and copper. The resistor composition also desirably containing significant amounts of silicon.

REFERENCES:
patent: 3732117 (1973-05-01), Nitta et al.
patent: 3754987 (1973-08-01), Purdes

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