FIXING OXIDE MATERIAL FOR PLATES OF SACRIFICIAL MATERIAL OF LOCALISATION DEVICE OF REACTOR ACTIVE CORE MELT Russian patent published in 2015 - IPC G21C9/16 

FIELD: metallurgy.

SUBSTANCE: specified fixing oxide material contains fine aluminium oxide and alumocalciferous mixture of calcium mono- and dialuminate in ratio wt %: fine aluminium oxide - 25-84, alumocalciferous mixture - 16-75, at that weight ratio of calcium mono- and dialuminate in the alumocalciferous mixture is within range from 1:4 to 1:5. At that the specified fixing material does not contain elements able to enter in reaction with the core melt with generation of the volatile compounds. Processes of water exit from the developed fixing material are significantly separated in time with oxygen exit from plates of the sacrificial material. Components of the fixing material chemically do mot interact with components of the core melt.

EFFECT: increased explosion safety of the reactor by creation of the fixing material to couple plates and granules of the sacrificial material of the device localising the reactor core melt with lesser water content and higher melting temperature.

1 dwg, 3 tbl