Response of isotopically tailored titanium diboride to neutron irradiation

The response of polycrystalline TiB 2 to neutron irradiation was investigated. The material was fabricated using isotopically enriched 11 B powders to minimize helium production via the 10 B(n, α) 7 Li reaction. Neutron irradiation was conducted at temperatures of ~200°C and ~600°C to a fast fluence of 2.4 × 10 25 n/m 2 (>0.1 MeV). The material exhibited some swelling, but less swelling at the higher irradiation temperature. No macroscopic...