RADIATION EFFECTS IN CARBONS AND GRAPHITES

Author: Yoshikawa, H. H.
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: Davidson, J. M., Helm, J. W., Nightingale, R. E., and Woodruff, E. M.

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Summary

Two simultaneous effects occur during the irradiation of polycrystnlline graphite which account for the observed dimensional instability. The first is a disordering of the crystallites which results in an expansion parallel to the c axis and a contraction parallel to the a axis. This process is highly temperature dependent and at room temperature is the principal effect. The second effect is a nonannealable contraction, which acts primarily in the transverse direction in anisotropic nuclear graphite, and seems to occur primarily in the non-graphitic part of the polycrystalline structure. (auth)

Report Numbers

HW-SA-2368

Other Subject(s)

Collection

U.S. Atomic Energy Commission depository collection.

Note

DOE contract number: AT(45-1)-1350
NSA number: NSA-17-004989
OSTI Identifier 4752202
Research organization: General Electric Co. Hanford Atomic Products Operation, Richland, Wash.

Funding Information