Electroconductive ceramics
US4528121A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1983 |
| Grant date | Jul 9, 1985 |
| Priority date | — |
| Expiry date | Oct 27, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B3/141
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.