Neutron- absorbing composite material and its production process

摘要

The invention relates to a neutron-absorbing composite material and its production process. This material comprises a ceramic homogeneous matrix, e.g. of boron carbide B4C or BN, in which are dispersed calibrated or uncalibrated, e.g. 100 to 500 mu m pseudospherical clusters (3) formed from refractory metals such as Mo, molybdenum boride and/or B4C. As a result of the presence of these clusters, improved mechanical properties are obtained compared with those of pure B4C.