Although the radioactive cesium the package is done, being the ceramics which designates the ceramics which possesses the horando structure which contains the cesium which is suited

摘要

PROBLEM TO BE SOLVED: To provide a ceramic and a method for preparing the ceramic.;SOLUTION: The ceramic for packaging radioactive cesium is based on cesium with a hollandite structure with the formula: A_xB_y(C¹_z1,C²_z2)D_tO₁₆ (in which, A represents the monovalent element Cs, possibly partly substituted by at least one other monovalent element; B represents the divalent element Ba, possibly partly substituted by at least one other divalent element; C¹ represents the trivalent element aluminum, possibly partly substituted by at least one other trivalent element; C² represents the trivalent element iron and/or chromium, possibly partly substituted by at least one other trivalent element; and D represents at least one element chosen in a group consisting of tetravalent titanium, divalent, trivalent or tetravalent manganese, pentavalent niobium and pentavalent antimony and mixtures thereof).;COPYRIGHT: (C)2003,JPO