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U.S. Department of Energy
Office of Scientific and Technical Information

PLUTONIUM FUELS DEVELOPMENT--PLUTONIUM METALLURGY OPERATION QUARTERLY REPORT FOR APRIL, MAY, JUNE 1958

Technical Report ·
OSTI ID:4252481

Radiometallurgical examination of the last two capsules irradiated in the MTR to 55 to 60% burnup of the Pu atom is complete. These capsules contained Al-1.65 wt. % Pu and Al-12 wt. % Si-1.65 wt. % Pu alloy cores. Assembly is in progress on two four-rod Al-8 wt. % Pu and Al-l2 wt. % Si-8 wt. % Pu alloy clusters for irradiation in the 250 deg C water of the KER loop facility. A pyrometallurgical process for recycling irradiated Pu-Al fuels has been tested on unirradiated materials. Injection casting of Al-Pu alloy into Zircaloy-clad tubes is being investigated as a fuel fabrication technique. Mixed crystal oxides of U and Pu in a ratio of one to five have been processed to form pellets having a green density of 63% of theoretical with an L/D value of 1.3. Assembly was completed on the first model of a new 19-rod cluster design designated the Mark-IB. Improved techniques were devised for the welded closures on Zircaloy tubing and for the attachment of Zircaloy spacer wires to the Zircaloy end caps by Heliarc spot welding techniques. (W.L.H.)

Research Organization:
General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
DOE Contract Number:
W-31-109-ENG-52
NSA Number:
NSA-13-007737
OSTI ID:
4252481
Report Number(s):
HW-57342
Country of Publication:
United States
Language:
English