[1D09-11] Next-Gen. Materials (ODS Steels)

[1D11] High temperature reaction between metal borides and stainless steel

*Kenichi Hashizume¹, Yusuke Kido¹, Ippei Goto², Kan Sakamoto³ (1. Kyushu Univ., 2. Kyushu Univ. Dept. Eng., 3. NFD)

Keywords:metal borides, stainless steel, high temperature reaction, control rod, severe accident

Eutectic reactions between group-4 metal borides and stainless steel were examined with thermal analysis, comparing to boron carbide. The reaction temperatures ranged around 1200~1300℃, but the reaction rates for group-4 metal borides were slower than that of boron carbide. This suggested that group-4 metal borides would be suitable as control material.