Compositions – Electrically conductive or emissive compositions – Radioactive material containing
Patent
1978-08-16
1986-04-29
Barr, Josephine L.
Compositions
Electrically conductive or emissive compositions
Radioactive material containing
252518, 252520, 252521, H01B 100, H01B 106
Patent
active
045855803
ABSTRACT:
Thick flim resistors and conductors compatible with copper and fireable in nonoxidizing atmosphere are provided. The resistors are based on certain hexaboride conductors such as LaB.sub.6 and glasses which are thermodynamically stable to or nonreducible by the hexaborides. Thick film pastes prepared with small particle size hexaboride and certain ethylene-vinyl acetate polymeric vehicles afford resistors having improved temperature coefficient of resistance and coefficient of variation.
REFERENCES:
patent: 3770478 (1973-11-01), Bishop
Valeev, Kh. S. et al, Chemical Abstracts 85 (1976), 135965u, "Semiconductor Ceramic Material for Producing Volume-Type Resistors".
Smirnov, M. A. et al, Chemical Abstracts 79 (1973), 109218j, "Resistance Material Made of Lanthanum Hexaboride and Glass".
Barr Josephine L.
E. I. Du Pont de Nemours and Company
Frank George A.
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