Composition and method for brazing graphite to graphite

Patent · Tue Aug 10 00:00:00 EDT 1982

OSTI ID:6015881

Taylor, A J; Dykes, N L

A brazing material is described for joining graphite structures that can be used up to 2800/sup 0/C. The brazing material is formed of a paste-like composition of hafnium carbide and uranium oxide with a thermosetting resin. The uranium oxide is converted to uranium dicarbide during the brazing operation and then the hafnium carbide and uranium dicarbide form a liquid phase at a temperature about 2600/sup 0/C with the uranium diffusing and vaporizing from the joint area as the temperature is increased to about 2800/sup 0/C so as to provide a brazed joint consisting essentially of hafnium carbide. The resulting brazed joint is chemically and thermally compatible with the graphite structures.

• DOE Contract Number: W-7405-ENG-26
• Assignee: ERA-08-036553; EDB-83-112276
• Application Number: ON: DE83013176
• OSTI ID: 6015881
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GRAPHITE
BRAZING
HAFNIUM CARBIDES
RESINS
THERMOPLASTICS
URANIUM OXIDES
ACTINIDE COMPOUNDS
CARBIDES
CARBON
CARBON COMPOUNDS
CHALCOGENIDES
ELEMENTAL MINERALS
ELEMENTS
FABRICATION
HAFNIUM COMPOUNDS
JOINING
MATERIALS
MINERALS
NONMETALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDES
OXYGEN COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
SYNTHETIC MATERIALS
TRANSITION ELEMENT COMPOUNDS
URANIUM COMPOUNDS
WELDING
360601* - Other Materials- Preparation & Manufacture