Анотація:
We studied the effect of neutron irradiation on composite material HfC-HfB₂-
C made using rapid reactive hot pressing technology. The histograms of microhardness
and results of X-ray phase analysis, obtained both before and after neutron and electron
irradiation of the samples, were considered. It was found that secondary electrons make a
considerable contribution at low-fluence (~10¹⁴ neutron/cm²
) neutron irradiation. Afluence range was determined at which reduction of composite material microhardness is observed.