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U.S. Department of Energy
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Fabrication of zirconium-clad uranium fuel elements

Technical Report ·
OSTI ID:4185841

Zr-clad U rods are being produced on a small scale by simultaneous extrusion. A U billet is machined and the surface carefully prepared by pickling. An extruded Zr tube is shrunk or pushed on the U slug. The assembly is machined to give the proper thickness of cladding and is then extruded in a protective jacket. The jacket is removed chemically or mechanically, and the element is given a slight cold finish by swaging to obtain surface and dimensional tolerances. Even claddings are obtained, and mechanical and thermal cycling tests show that a strong bond exists. (J.R.D.)

Research Organization:
Massachusetts Inst. of Tech., Cambridge, MA (United States)
Sponsoring Organization:
US Atomic Energy Commission (AEC)
NSA Number:
NSA-14-010772
OSTI ID:
4185841
Report Number(s):
MIT-PL--12
Country of Publication:
United States
Language:
English

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