Method of stabilizing the hot resistance of ceramic positive tem

Details Method of stabilizing the hot resistance of ceramic positive tem Method of stabilizing the hot resistance of ceramic positive tem

1974-06-13

1976-01-20

Weinblatt, Mayer

Coating processes

Electrical product produced

Condenser or capacitor

29610, 29611, 29612, 29621, 338 22, 252520, 252521, 427103, 427125, 427383, B05D 512

Patent

active

039340589

ABSTRACT:
The hot resistance of ceramic positive temperature coefficient resistors is stabilized by subjecting such resistors to a heat treatment over a period of time ranging from 1 to 40 hours at a temperature in the range of 400.degree. to 500.degree. C., either during or after the application of contact coatings on the resistor.

REFERENCES:
patent: 3037180 (1962-05-01), Linz, Jr.
patent: 3258434 (1966-06-01), Mackenzie et al.
patent: 3449824 (1969-06-01), Heilmeier
patent: 3754987 (1973-08-01), Purdes

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