Semi-conductive ceramic composition and its use in the manufactu

Details Semi-conductive ceramic composition and its use in the manufactu Semi-conductive ceramic composition and its use in the manufactu

1989-11-07

1991-03-12

Dixon, Jr., William R.

Compositions

Electrically conductive or emissive compositions

Carbide containing

501 87, 501 89, 501134, C04B 3552, H01B 104

Patent

active

049991370

ABSTRACT:
The semi-conductive ceramic composition is obtained according to the invention from (a) a basic composition containing 40 to 80% by weight of a semi-conductor which is a silicon or boron carbide, 5 to 40% by weight of a binder or of a mixture of binders chosen from aluminum oxide, beryllium oxide, zirconium oxide, magnesium oxide, silica and silicon nitride, and 0 to 40% of a flux of a mixture of fluxes chosen from alkaline-earth carbonates and oxides, rare earth oxides and metal silicates, and (b) 5 to 40% by weight, relative to the basic composition (a), of a heat-emitting dope chosen from titanium, barium titanate, tungsten and lanthanum boride.

REFERENCES:
patent: 3088921 (1963-05-01), Heischmann
patent: 3291759 (1963-12-01), Pitha
patent: 3376367 (1968-04-01), Subramanya et al.
patent: 3558959 (1971-01-01), Ziemendorg
patent: 3573231 (1971-03-01), Subramanya et al.
patent: 4120829 (1978-10-01), Dulin

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