A Study on the chemical reaction between fuel materials and graphite block, 3-2; Differential scanning calorimetry of the uranium dioxide and graphite

Naito, Hiroyuki; Yamamoto, Masaya; Maeda, Shigetaka; Kurematsu, Shigeru*; Sato, Isamu*; Maeda, Koji

no journal, , 

Differential scanning calorimetry was used to study the chemical reaction between the uranium dioxide pellet and the graphite block. The reaction was investigated under the condition of the maximum temperature 1,500 C or with the core structure materials, e.g. iron. The result showed that weight loss of the graphite block was caused by only oxidation of carbon and we confirmed that a little oxygen from acid iron caused a very little weight loss of graphite block. Therefore we consider that the graphite blocks wouldn't be thinned if they could contact with the fuel materials in the safety vessel of the experimental fast reactor JOYO.