Cobalt ruthenate thermistors

Details Cobalt ruthenate thermistors Cobalt ruthenate thermistors

1997-09-05

2000-05-23

Kopec, Mark

Compositions

Electrically conductive or emissive compositions

Metal compound containing

H01B 114

Patent

active

060662719

ABSTRACT:
Composition of matter of cobalt ruthenate compounds and glass, wherein said compounds have the formula Co.sub.3-x Ru.sub.x-y M.sub.y O.sub.4 wherein: M is a metal selected from among Mn, Fe, Cu, Zn and Al; and x and y are numbers in the range between 0 and 2, inclusive, and thick film paste compositions comprising said compounds are provided. Novel cobalt ruthenate compounds, process for preparing such compounds and uses thereof are also provided.

REFERENCES:
patent: 3960778 (1976-06-01), Bouchard et al.
patent: 4347166 (1982-08-01), Tosaki et al.
patent: 4539223 (1985-09-01), Hormadaly
patent: 5122302 (1992-06-01), Hormadaly
patent: 5491118 (1996-02-01), Hormadaly
Mendonca et al "Studies of the Spinal Solid Solution Co.sub.2 Ru.sub.1-x Fe.sub.x O.sub.4 " J. Mater. Chem. (1994), 4(4) pp. 515-517.
Beck et al "Investigation of superconductivity and physical properties" of some spinel-, porouskite-and pyrochlove oxides Inst.Inorg.Chem/J. Less-Common Met. 1989, 147(2) 217-220.
Krutzsch et al., "Saurstoff--Spinelle Mit Ruthenium Und Iridium," Mat. Res. Bull., vol. 18, pp. 647-652, 1983 (with English Abstract).
Krutzsch et al., Investigations Concerning the Incorporation of Ti, Cr, Mn, Fe, Cu, Zn and Rh into the Co-Ru-Spinel Phase Co.sub.2+x Ru.sub.1-x O.sub.4, Mat. Res. Bull., vol. 19, pp. 1659-1668, 1984 (English translation).

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