SOLDER BONDING ALUMINUM TO URANIUM
A study was undertaken to determine if flat-plate fuel elements could be produced by solder bonding aluminum sheets to a uranium core. It was necessary to plate the uranium with chromium, iron, or nickel, which served as a diffusion barrier. The solders used were lead, tin, zinc, and their alloys. No provision was made for removing surface oxides on the base metals. Therefore, it was necessary to plate the aluminum and the uranium diffusion barrier. The best bonds were produced with aluminum plated with 0.5 mil of copper and nickel-plated uranium given a copper flash. Corrosion tests on bonded samples showed zinc was the most corrosionresistant solder tested. Successive samples made with like solders sometimes varied in joint quality. A greater variation would probably exist in larger samples made under mass-production conditions. (auth)
- Research Organization:
- Battelle Memorial Inst., Columbus, Ohio; North American Aviation, Columbus, Ohio; Electric Boat Div., General Dynamics Corp., Groton, Conn.
- NSA Number:
- NSA-13-015419
- OSTI ID:
- 4239098
- Journal Information:
- Welding J. (N.Y.), Journal Name: Welding J. (N.Y.) Vol. Vol: 38
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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