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Title: Composition and method for brazing graphite to graphite

Abstract

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.

Inventors:
;
Issue Date:
OSTI Identifier:
6015881
Application Number:
ON: DE83013176
Assignee:
ERA-08-036553; EDB-83-112276
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
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

Citation Formats

Taylor, A J, and Dykes, N L. Composition and method for brazing graphite to graphite. United States: N. p., 1982. Web.
Taylor, A J, & Dykes, N L. Composition and method for brazing graphite to graphite. United States.
Taylor, A J, and Dykes, N L. Tue . "Composition and method for brazing graphite to graphite". United States.
@article{osti_6015881,
title = {Composition and method for brazing graphite to graphite},
author = {Taylor, A J and Dykes, N L},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {8}
}