THE BRAZING OF GRAPHITE
A program was conducted to develop techniques for brazing graphite to graphite and to metals for reactor applications. Prime difficulties are those associated with differences in thermal expansion coefficients. In addition, the requirements of acceptable wetting, high strength, and adequate compatibility with reactor environments must be considered. An experimental brazing alloy containing titanium and zirconium was found to be an excellent general purpose material since it readily flows on graphite. This alloy appears very attractive for fabricating graphite assemblies for a wide variety of elevated-temperature applications. Brazing alloys in both the gold- nickel- molybdenum and gold- nickel- tantalum ternary systems were also developed which were corrosion resistant to molten fluoride salts. Compositions, which readily wet and flow on graphite and which are suitable for fabricating graphite-tographite and graphite- to-molybdenum assemblies were found. Joints at least as strong as the graphite being brazed were produced. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- NSA Number:
- NSA-16-019322
- OSTI ID:
- 4830177
- Journal Information:
- Welding J., (N.Y.), Journal Name: Welding J., (N.Y.) Vol. Vol: 41
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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