Neutron irradiation effects on carbon and graphite cloths and fibers

Journal Article · Fri Sep 01 04:00:00 EDT 1978 · Nucl. Technol.; (United States)

OSTI ID:6533324

Gray, W J

Because of the interest in using carbon or graphite cloth between the plasma and the first structural wall of fusion reactors, cloth and fiber samples were irradiated to neutron fluences of 3.5, 7.3, and 10 x 10/sup 21/ cm/sup -2/ at 743 K. 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 large dimensional changes, all but one of the two-dimensional cloths remained essentially unchanged in overall physical appearance. On the other hand, the three-dimensional cloths deteriorated, apparently because these types of weaves were less able to accommodate the large axial fiber shrinkages.

• Research Organization: Battelle Pacific Northwest Labs., Richland, WA
• OSTI ID: 6533324
• Journal Information: Nucl. Technol.; (United States), Journal Name: Nucl. Technol.; (United States) Vol. 40:2; ISSN NUTYB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360106 -- Metals & Alloys-- Radiation Effects
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700209* -- Fusion Power Plant Technology-- Component Development & Materials Testing
BARYON REACTIONS
CARBON
ELEMENTS
FIRST WALL
GRAPHITE
HADRON REACTIONS
NEUTRON REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
PHYSICAL RADIATION EFFECTS
PLASMA
RADIATION EFFECTS
SHIELDING
THERMONUCLEAR REACTOR MATERIALS
THERMONUCLEAR REACTOR WALLS
THERMONUCLEAR REACTORS