TY JOUR TI THE MODIFIED IRON OXIDIC FILLERS FOR DESIGNS OF RADIATION PROTECTION OF ATOMIC REACTORS KW iron ore concentrate KW magnetite KW modifying KW composite material KW receiving KW properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Yastrebinskaya , A.. AU Matyukhin , P.. AU Yastrebinskiy, R.N. AU Karnaukhov , A.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov