Abstract
A new dispersion-type sintered neutron absorbing alloy has been developed. An organometallic complex of highly neutron absorbing Gd, Sm and In is melted by heating to 200°C. Powder particles of Fe-13Cr are then coated with the molten complex, followed by powder rolling and sintering. Because of this pro-cedure of heating and decomposing the thin film of an organometallic complex, the fine carbide particles of uniform size are distributed uniformly in the alloy and the grain growth is suppressed. The resulting neutron absorbing material has thus high values of both hardness and mechanical strength at room temperature and also in ductility.
