[2F11-15] Next Generation Fuel, Accident Tolerant Fuel

[2F13] Technological development of the particle size adjustment of recycle powder

(8) Sintered density control with dry recovered powder and microstructure evaluation

*Tomoomi Segawa¹, Koichi Kawaguchi¹, Katsunori Ishii¹, Kazuya Yamamoto¹, Takayoshi Makino¹, Kazuyuki Okumura¹ (1. JAEA)

Keywords:Particle size adjustment technology, Pulverization, Sintering, Dry recovered powder, Collision plate-type jet mill, void

To clarify the mechanism of the control of pellet sintering density by dry recovered powder , pelletizing and sintering tests of pellets using (Ce,Zr)O₂ dry recovered powder with ZrO₂ added as a tracer to identify dry recovered powder in the pellets were performed, and the microstructure was evaluated.