DEVELOPMENT OF CLAD CERAMIC FUEL PLATES BY SPRAY-COATING TECHNIQUES. Quarterly Technical Progress Report, April-June 1961

Author: Weare, N. E.
Published: United States : [publisher not identified], 1962.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1962.
Physical Description: microopaque : positive ; 8 x 13 cm
Additional Creators: Buchanan, E. and Marchandise, H.

Availability

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Summary

Studies were made on the effects of spray-coating variables on coating characteristics in the development of plasma-jet spraying techniques for making clad UO/sub 2/ fuel plates. UO/sub 2/ coatings of up to 90% theoretical density and - O/U ratios of nearly 2.00 were deposited at efficiencies of 40%. Adherent UO/sub 2/ coatings up to 0.100 inch thick can be deposited on 0.030-inch thick stainless steel and Zircaloy-2 substrates. Studies of coated composite bends and coating adherence at room temperature indicate that, for best results, the coating temperature should be maintained below 870 deg C and the substrate below 450 deg C during deposition. A plasma spray torch was tested for spraying UO/sub 2/ at 40 kw and found to be equivalent to operation at 25 kw. A preliminary cost analysis indicated considerably lower fabrication costs using plasma jet sprayingn ~ 0/kg U as compared to ~ 0/kg U for oxide pellet-in-tube elements. (D.L.C.)

Report Numbers

ATL-A-121

Other Subject(s)

Collection

U.S. Atomic Energy Commission depository collection.

Note

DOE contract number: AT(04-3)-250
NSA number: NSA-16-003814
OSTI Identifier 4830382
Research organization: Advanced Technology Labs. Div. of American-Standard, Mountain View, Calif.

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