Neutron irradiation effects on carbon and graphite cloths and fibers

Technical Report · Mon Aug 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/7284665· OSTI ID:7284665

Gray, W. J.

A series of cloth and fiber samples were irradiated to fluences of 3.5, 7.3, and 10 x 10/sup 21/ cm/sup -2/ at 470/sup 0/C. Dimensional changes of the fibers in the radial direction ranged from -19% to +33% and in the axial direction from -18% to -27%, roughly ten times greater than dimensional changes found for typical nuclear graphites. Despite these large dimensional changes, all but one of the 2-dimensional cloths remained essentially unchanged in overall physical appearance. The 3-dimensional cloths, on the other hand, deteriorated apparently because these types of weaves were less able to accommodate the large axial fiber shrinkages.

• Research Organization: Battelle Pacific Northwest Labs., Richland, Wash. (USA)
• DOE Contract Number: EY-76-C-06-1830
• OSTI ID: 7284665
• Report Number(s): BNWL-2390
• Country of Publication: United States
• Language: English

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BARYON REACTIONS
CARBON
CARBON FIBERS
ELEMENTS
FIBERS
FIRST WALL
GRAPHITE
HADRON REACTIONS
NEUTRON REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PHYSICAL RADIATION EFFECTS
RADIATION EFFECTS
SHIELDING
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTOR WALLS