H - Electricity – 01 – B
Patent
H - Electricity
01
B
31/161, 123/209
H01B 3/12 (2006.01) C04B 35/56 (2006.01) C04B 35/563 (2006.01) C04B 35/565 (2006.01) H01T 13/52 (2006.01)
Patent
CA 2003474
Semi-conductive ceramic composition and its use in the manufacture of spark plugs ABSTRACT OF THE TECHNICAL CONTENT OF THE INVENTION 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 or 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. Fig. None
Balland Patrick
Wapler Simone
Balland Patrick
Eyquem
Swabey Ogilvy Renault
Wapler Simone
LandOfFree
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