Korea Atomic Energy Research Institute

Korea Hydro Nuclear Power Co., Ltd.

Dong Joo Kim

Jong Hun Kim

Kun Woo Song

Young Woo Rhee

Jae Ho Yang

Keon Sik Kim

Ki Won Kang

Dong Seok Kim

Sang Chae Jeon

Ji Hae Yoon

A method for manufacturing an annular nuclear fuel pellet is provided. In the method, an annular nuclear fuel green compact whose lateral cross-section is a trapezoid is prepared. The thickness of the annular nuclear fuel green compact reduces along one direction of the central axis, and a green density of the nuclear fuel green compact increases along one direction of the central axis. The annular nuclear fuel green compact is sintered under a reducing gas atmosphere so that the annular nuclear fuel pellet is obtained. According to this method, the annular pellet which has uniform inner and outer diameters and small diametric tolerances along the pellet height is fabricated without grinding the pellet surfaces.

Method for manufacturing sintered annular nuclear fuel pellet without surface grinding

Growing community of inventors

Daejeon, South Korea

Dong Joo Kim