The Fabrication of Clad Massive UO2 Fuel Elements by Coextrusion (Second Quarterly Report)
- Nuclear Metals, Inc., Concord, MA (United States)
Two potential types of metal-clad UO2 rods were produced by coextrusion. The first type is stainless steel clad with an intervening graphite layer of 15 mils. The second type has a refractory metal cladding and no interlayer. Tantalum was used in the studies. Both of the above billet designs yield coextrusions having a potential rating of good. The O/U ratio of starting materials with satisfactory extrudability was found to be between 2.00 and 2.10. By decreasing the temperature of the extrusion billet shell, the extrusion force increased to 400/600 tons which in turn increased extrusion pressures to 75/85 tsi. A corresponding change in apparent extrusion constant from 20/25 tsi to 30/ 35 tsi was noted. (For preceding period see NMI2502.)
- Research Organization:
- Nuclear Metals, Inc., Concord, MA (United States)
- Sponsoring Organization:
- US Atomic Energy Commission (AEC)
- NSA Number:
- NSA-14-011949
- OSTI ID:
- 4177735
- Report Number(s):
- NMI--2505
- Country of Publication:
- United States
- Language:
- English
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