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Effect of Fast Neutron Irradiation on the Structure of Boron Carbide
Author(s) -
HOLLENBERG G. W.,
CUMMINGS W. V.
Publication year - 1977
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1977.tb14097.x
Subject(s) - swelling , boron carbide , materials science , irradiation , boron , neutron diffraction , composite material , neutron irradiation , carbide , diffraction , dilation (metric space) , neutron , crystallography , radiochemistry , chemistry , nuclear physics , optics , crystal structure , physics , mathematics , organic chemistry , combinatorics
The leading LMFBR control rod material, B 4 C, was examined by SEM, TEM, and X‐ray diffraction after irradiation up to 80 × 10 20 captures/cm 3 between 500° and 920°C. Bulk swelling was found to be the result of elastic and plastic strains, rather than dilation of the unit cell. Microcracking was observed and explained in terms of anisotropic swelling.