[1I09-13] Fuel Production/Storage Technology

[1I10] Technological development of the particle size adjustment of recycle powder

(7)Study on sintering density prediction method for the pellet with dry recycled powder

*Koichi Kawaguchi¹, Kazuya Yamamoto¹, Takayoshi Makino¹, Hidetoshi Iso¹, Tomoomi Segawa, Katsunori Ishii (1. JAEA)

Keywords:Sintering density, Prediction method, Dry recycled powder, Fuel fabrication

Simulated raw powder and each simulated dry recycled powder with 5 different particle size distributions were mixed with mixing ratio of 10:0 to 0:10. Sintering density of the pellets made from the mixed powder were measured and analyzed by algebraic methods. The sintering density of pellets made from mixed powder were approximated by linear combination of sintering density of simulated raw powder and that of simulated dry recycled powder. Furthermore, sintering densities of pellets made from simulated dry recycled powder were approximated by linear combination of sintering densities of components particles depends on its particle size. Based on these results, a sintering density prediction method was considered.