NEUTRON ABSORBER MATERIAL AND METHOD OF MANUFACTURE.

摘要

PCT No. PCT/FR94/00614 Sec. 371 Date Feb. 7, 1995 Sec. 102(e) Date Feb. 7, 1995 PCT Filed May 25, 1994 PCT Pub. No. WO94/28556 PCT Pub. Date Dec. 8, 1994The invention relates to a neutron-absorbing material and to its production process. This material comprises a homogeneous, boron carbide matrix 1 in which are dispersed e.g. pseudospherical, 150 to 500 mu m , calibrated clusters 3 of boride such as HfB2, in order to prevent the propagation of cracks F in the material and improve its thermal shock resistance.