High-temperature electrically conductive ceramic and method for making same

Patent · Fri Jun 19 00:00:00 EDT 1981

OSTI ID:5321790

Holcombe, Jr., C. E.; Masters, D. R.

It is the primary objective or aim of the present invention to provide an electrically conductive composition for the fabrication of susceptors useful for induction melting of uranium and uranium alloys and to also provide such a composition for forming crucibles and other containment vessels utilized to contain uranium at elevated temperatures. This composition does not appear to interact with molten uranium, since there is no significant reaction between the compositional consituents of the susceptor or containment vessel and the confined uranium. This objective is achieved by utilizing a sintered ceramic composition which consists essentially of about 13-67 vol. % of a refractory metal carbide and a nonconductive oxide selected from a group consisting of zirconium oxide, calcium aluminate, yttria, and combinations thereof.

• DOE Contract Number: W-7405-ENG-26
• Assignee: Dept. of Energy
• Application Number: ON: DE82011766
• OSTI ID: 5321790
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
ELECTRIC CONDUCTIVITY
FABRICATION
CALCIUM COMPOUNDS
CARBIDES
CRUCIBLES
REFRACTORY METALS
YTTRIUM OXIDES
ZIRCONIUM OXIDES
ALKALINE EARTH METAL COMPOUNDS
ALLOYS
CARBON COMPOUNDS
CHALCOGENIDES
ELECTRICAL PROPERTIES
ELEMENTS
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
ZIRCONIUM COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication