|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XVI
||Weight Loss Mechanism of (La0.8Sr0.2)0.98MnO3▒δ during Thermal Cycles
||Shadi Darvish, Yu Zhong
|On-Site Speaker (Planned)
A new weight loss Mechanism of (La0.8Sr0.2)0.98MnO3▒δ (LSM-20) using the La-Sr-Mn-O thermodynamic database is proposed with respect to the compound energy formalism (CEF) model, utilizing the CALculation of Phase Diagram (CALPHAD) approach. Quantitative Brouwer diagram for LSM-20 in air was plotted according to the defect chemistry analysis of perovskite phase and the charge disproportionation for temperature range of 600-1400░C. The SDT experiments on weight loss show the thermodynamic and kinetics effect during the thermal cycles. It was found that the Schottky defects dominate during the thermal cycles for LSM-20.
||Planned: Supplemental Proceedings volume