OXIDE MATERIAL OF NUCLEAR REACTOR CORE MELT TRAP Russian patent published in 2016 - IPC G21C9/16 

FIELD: nuclear physics.

SUBSTANCE: group of inventions relates to compositions of materials for nuclear power engineering, namely to sacrificial materials. Oxide material of nuclear reactor core melt trap, which includes Al₂O₃, Fe₂O₃ and/or Fe₃O₄, first target additive in form of Gd₂O₃ or Eu₂O₃, or Sm₂O₃ and second target additive in form of BaCeO₃ in following proportions, wt%: Fe₂O₃ and/or Fe₃O₄ (46-80), Al₂O₃ (16-50), first target additive (0.1-2.5), BaCeO₃ (3.0-12.5). Oxide material of nuclear reactor core melt trap, which includes Al₂O₃, Fe₂O₃ and/or Fe₃O₄, target additive in form of BaCe_1-xLn_xO_3-δ, where Ln is one of following elements: Gd, Eu, Sm, where 0.1≤x≤0.3, and δ=x/2 in following proportions, wt%: Fe₂O₃ and/or Fe₃O₄ (46-80), Al₂O₃ (16-50), BaCe_1-xLn_xO_3-δ (3-15).

EFFECT: group of inventions allows improving reliability of emergency core melt localisation of nuclear reactor.

2 cl, 2 tbl