Actions for THE DEVELOPMENT OF MATERIALS FOR APPLICATION TO CONTROL ROD SYSTEMS IN GRAPHITE-MODERATED REACTORS

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THE DEVELOPMENT OF MATERIALS FOR APPLICATION TO CONTROL ROD SYSTEMS IN GRAPHITE-MODERATED REACTORS

Author
Wade, G. E.
Published
United States : [publisher not identified], 1963.
[Oak Ridge, Tennessee] : [U.S. Atomic Energy Commission], 1963.
Physical Description
microfiche : negative ; 8 x 13 cm
Additional Creators
Kempf, F. J.

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Summary
Test and fabrication experience with control m terials for graphite moderated tube type reactors indicated that a wide variety of satisfactory rod designs are possible using either boron which is integral with the control rod sheath or B/sub 4/C graphite and sintered BiC--aluminum within metallic rod sheaths. The control effectiveness of tubular boron stainless steel rods can also be increased by filling the interior of the rod with sintered B/sub 4/C. Materials such as Al/sub 2/O/sub 3/, graphite, and pyrolytic carbon (PyC) graphite or PyC impregnated carbonized hemp, jute, or graphite felt provide rod channel liners with a wide range of strengih and deflection characteristics. In order of preference for channel liner applications, graphite or PyC-impregnated graphite are first from the standpoint of acceptable nuclear characteristics and cost. In those portions of the rod channel where load resisting capacity is required greater than that provided by graphite, Al/sub 2/O/sub 3/ liners are acceptable. The economic penalties of added enrichment costs associated with installation of relatively thick walled Al/sub 2/O/sub 3/ liners can be minimized or at least reduced by placement of these liners only in portions of the rod channel where the very high strength material is required. (auth)
Report Numbers
HW-SA-3088; CONF-263-1
Other Subject(s)
Collection
U.S. Atomic Energy Commission depository collection.
Note
DOE contract number: AT(45-1)-1350
NSA number: NSA-18-001189
OSTI Identifier 4160314
Research organization: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
View MARC record | catkey: 40790269