MgOを母材とした高速炉用Am含有非均質燃料の作製試験

Fabrication of Am-doped MgO advanced fuel for use in fast reactor

三輪 周平  ; 逢坂 正彦  ; 田中 康介  ; 石 洋平; 田中 健哉; 関根 伸一*; 関 崇行*

Miwa, Shuhei; Osaka, Masahiko; Tanaka, Kosuke; Ishi, Yohei; Tanaka, Kenya; Sekine, Shinichi*; Seki, Takayuki*

高速炉を用いたマイナーアクチニドのリサイクル技術開発の一環として、高濃度のAmと不活性母材を組合せた非均質燃料の開発を進めている。粉末冶金を用いたプロセスにてAm含有非均質燃料の作製試験を実施し、高密度かつMA酸化物相が一様に分散する燃料の作製手法を確認した。

R&D of advanced fuel containing minor actinide for use in fast reactors is described related to the composite fuel with MgO matrix. Fabrication tests of MgO composite fuels containing Am were done by a practical process that could be adapted to the presently used commercial manufacturing technology. Am-containing MgO composite fuels having good characteristics, i.e., having no defects, a high density, a homogeneous dispersion of host phase, were obtained.