Thermal durability of modified synroc material as reactor fuel matrix. - Kikuchi, Akira; Japan Atomic Energy Research Institute^pJP; Kanazawa, Hiroyuki; Togashi, Yoshihiro; Matumoto, Seiichiro; Nishino, Yasuharu; Ohwada, Isao; Nakata, Masahito; Amano, Hidetoshi; Mitamura, Hisayoshi (Ibaraki-ken : Japan Atomic Energy Research Institute, 1994)