High-temperature electrically conductive ceramic composite and method for making same
The present invention relates to a metal-oxide ceramic composition useful in induction heating applications for treating uranium and uranium alloys. The ceramic composition is electrically conductive at room temperature and is nonreactive with molten uranium. The composition is prepared from a particulate admixture of 20 to 50 vol. % niobium and zirconium oxide which may be stabilized with an addition of a further oxide such as magnesium oxide, calcium oxide, or yttria. The composition is prepared by blending the powders, pressing or casting the blend into the desired product configuration, and then sintering the casting or compact in an inert atmosphere. In the casting operation, calcium aluminate is preferably added to the admixture in place of a like quantity of zirconia for providing a cement to help maintain the integrity of the sintered product.
- Assignee:
- PTO; EDB-94-124269
- Patent Number(s):
- US 4406699; A
- Application Number:
- PPN: US 6-271889
- OSTI ID:
- 7248391
- Resource Relation:
- Patent File Date: 9 Jun 1981
- Country of Publication:
- United States
- Language:
- English
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High-temperature electrically conductive ceramic composite and method for making same
High-temperature electrically conductive ceramic and method for making same
Related Subjects
NIOBIUM OXIDES
FABRICATION
URANIUM
METALLURGY
URANIUM ALLOYS
ZIRCONIUM OXIDES
CHEMICAL COMPOSITION
ELECTRIC CONDUCTIVITY
SINTERING
YTTRIUM OXIDES
ACTINIDE ALLOYS
ACTINIDES
ALLOYS
CHALCOGENIDES
ELECTRICAL PROPERTIES
ELEMENTS
METALS
NIOBIUM COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
360101 - Metals & Alloys- Preparation & Fabrication