Oxygen selected membranes on the base of cermet δ-Bi₂O₃/Ag with an interpenetrating structure has the maximum potential air separation efficiency. However, degradation processes, including phase transformations of δ-Bi₂O₃ and recrystallization/segregation of silver with a loose of interpenetrating structure, will not allow to create a membrane with the required perfection and durability. The hypothesis about the possible chemical interaction of doped bismuth oxide with silver arose when studying the processes of membrane degradation. In this work, the mechanochemical and thermally activated chemical interaction of mechanically activated doped bismuth oxide with silver was proved by direct experiments with powder XRD on selected samples of solid electrolytes with the compositions Bi_0.78Dy_0.12Er_0.1O_1.50 and Bi_0.76Dy_0.12Er_0.1W_0.02O_1.53. The results obtained influence the choice of the composition of disordered fluorite, the conditions for its synthesis, and the creation of oxygen selective membranes based on cermet δ-Bi₂O₃/Ag.

具有互穿结构的金属陶瓷δ-Bi ₂ O ₃ /Ag基氧选膜具有最大的潜在空气分离效率。然而，降解过程，包括 δ-Bi ₂ O _3的相变以及具有松散互穿结构的银的再结晶/偏析，将无法形成具有所需完美性和耐用性的膜。在研究膜降解过程时，提出了关于掺杂氧化铋与银可能发生化学相互作用的假设。在这项工作中，机械活化掺杂氧化铋与银的机械化学和热活化化学相互作用通过粉末 XRD 对选定的固体电解质样品进行直接实验证明，其组成为 Bi _0.78 Dy _0.12 Er _0.1 O _1.50和 Bi _0.76 Dy _0.12 Er _0.1 W _0.02 O _1.53. 获得的结果会影响无序萤石的组成选择、其合成条件以及基于金属陶瓷 δ-Bi ₂ O ₃ /Ag 的氧选择性膜的产生。