Ceramic electrical resistor

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 contain...

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Bibliographic Details
Main Authors HOFFMANN; GUNTHER, SCHMELZ; HELMUT
Format Patent
LanguageEnglish
Published 07.12.1976
Subjects
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTRICITY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
RESISTORS
SLAG
TREATMENT OF NATURAL STONE
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Summary: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.
Bibliography:Application Number: US19740439569