Abstract

In situ measurement of electrical resistivity of TiC x (x = 0.56, 0.66 and 0.72) was done at liquid helium temperature under fusion (14 MeV) neutrons up to 1.92 × 10 21 n/m 2 . The resistivity increased almost linearly with the neutron dose, except at the beginning of the irradiation runs. The damage rate of TiC, increased with higher carbon content. Successive isochronal annealing of the irradiated TiC x was carried out up to 340 K. In the annealing process, there were several recovery stages to which the migration of interstitial type defects contributed. Even after an anneal at 340 K, a large unrecovered resistivity remained. It is suggested that the amount of the residual damage depends on the nonstoichiometry of the specimen.

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