Analysis of metallic sim-debris of the bundle degradation tests

Pshenichnikov, A. ; Nagae, Yuji ; Kurata, Masaki 

The work on analysis of metallic sim-debris have shown similarity between the test and real debris, which allowed the interpretation of the Unit 2 PCV debris origin and uncovered control blade degradation mechanism with formation of boron compounds in the metallic part of melt. Though the information was surely lacking, a rough estimation of the chemical composition of metallic debris and the place of the first solidification was made.