The current research investigates the phase separation phenomenon in (La_0.8Sr_0.2)_0.95(Cr_xFe_1-x)O_3±δ (LSCrF) under the fabrication and processing conditions of Oxygen Transport Membranes (OTM). The research employs an integrated thermodynamics approach with the focus on changes in crystal structures and phase stability on Cr-rich perovskites. The chemical stability has been examined under high temperatures (700–1400 °C) with different oxygen partial pressures (p(O₂)) (0.21 to 10⁻¹⁹ atm). The results reveal complicated correlations among dopant disintegrations in formations of secondary phases and the phase separation of the perovskite phase. The research provides predictions and practical procedures in the purpose of extending the lifetime of OTMs under processing conditions. The results for the perovskite phase have also been extended to examine the phase stability in dual-phase composites of Yttria-Stabilized ZrO₂ (YSZ) and LSCrF for high-temperature ceramic membranes.

当前的研究研究了在氧气传输膜（OTM）的制造和加工条件下（La _0.8 Sr _0.2）_0.95（Cr _x Fe _1-x）O _3±δ（LSCrF）的相分离现象。该研究采用综合热力学方法，重点研究富铬钙钛矿的晶体结构变化和相稳定性。在高温（700–1400°C）和不同的氧分压（p（O ₂））（0.21至10 ^-19 atm）。结果揭示了在次级相的形成中的掺杂剂崩解与钙钛矿相的相分离之间的复杂关联。该研究为延长OTM在处理条件下的寿命提供了预测和实用程序。钙钛矿相的结果也已扩展到检查用于高温陶瓷膜的氧化钇稳定的ZrO ₂（YSZ）和LSCrF的双相复合材料的相稳定性。