W.c. Heraeus Gmbh

Frieder Gora

Christina Modes

Joachim Schmidt

Karlheinz Guldner

Jurgen Dehoust

Hans-Georg Burckhardt

Sybille Kemmler-Sack

Inge Blanke

Rainer Kiemel

Karl-Heinz Guldner

A resistor composition comprising a pyrochlore-related oxide a glass frit and, anorthite as a finely-divided filler. The resistor composition exhibits high tolerance in respect to firing temperatures. Thick film resistors obtained therefrom by firing on, for example, aluminum oxide substrates, have relatively uniform resistance values, even with inconsistent firing conditions, and have high stability of resistance following laser trimming.

Resistor composition for producing thick film resistors

Resistor composition to produce thick film resistors, preferably the resistor films in sensors for temperature measurement, includes glass frit and an oxide which is at least one of CaCu.sub.3 Ru.sub.4 O.sub.12 and LaCu.sub.3 Ru.sub.4 O.sub.12.

Resistor composition and its use

Electrically conductive oxides of the pyrochlore family based on copper and/or silver, lead, bismuth, and ruthenium, characterized by the formula M.sub.x M'.sub.y (Pb,Bi).sub.2-x-y Ru.sub.2 O.sub.7-z, wherein M=copper and/or silver, M'=calcium, strontium, and/or barium, 0.ltoreq.x.ltoreq.0.6, 0.1.ltoreq.y.ltoreq.1.0, and 0.1.ltoreq.z.ltoreq.1.0.

Oxides of the pyrochlore family and electrically resistant materials

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Aschaffenburg, Germany

Frieder Gora