Electroconductive ceramics

Details Electroconductive ceramics Electroconductive ceramics

1983-10-27

1985-07-09

Barr, Josephine L.

Compositions

Electrically conductive or emissive compositions

Carbide containing

252518, 252520, 252521, 501 87, 501 96, 501 98, 501127, 501128, 501153, H01B 104, H01B 106

Patent

active

045281211

ABSTRACT:
Electroconductive ceramic materials with high density, high mechanical strength, high endurance to repeated current supply and excellent thermal shock resistance can be obtained by mixing 5 to 70 parts by weight of Al.sub.2 O.sub.3 or alumina ceramic materials containing 95% by weight or more of Al.sub.2 O.sub.3 and 30 to 95 parts by weight of at least one electroconductive material selected from of ZrB.sub.2, ZrC, ZrN, ZrSi.sub.2, TaB.sub.2, TaC, TaN, TaSi.sub.2, TiB.sub.2, TiC, TiN, Mo.sub.2 B.sub.5 and MoSi.sub.2 adding a molding binder, molding the mixture and sintering the molded mixture. The electroconductive ceramic is usable for heaters, glow plug heaters, electrical gas ignitors, kerosine gasifying burners, and electrodes or conductors for water processing or dialysis.

REFERENCES:
patent: 3875746 (1975-04-01), Crandall et al.
patent: 3895219 (1975-07-01), Richerson et al.
patent: 3968057 (1976-07-01), Dulin
patent: 4006106 (1977-02-01), Yoshida et al.
patent: 4008183 (1977-02-01), Ishii et al.
patent: 4443361 (1984-04-01), Hierholzer et al.

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