Thermal characterization and compatibility studies of perovskite-type Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) oxide with Cr2O3 at high temperature

被引：0
作者：
Edoardo Magnone
Myung Jae Seo
Hak Joo Kim
Jung Hoon Park
机构：
[1] Dongguk University,
[2] Korea Institute of Energy Research (KIER),undefined
来源：
Journal of Thermal Analysis and Calorimetry | 2014年 / 116卷
关键词：
Compatibility; BSCF; Cr; O; Chromium poisoning;
D O I：
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中图分类号：
学科分类号：
摘要：
The chemical compatibility of perovskite-type Ba0.5Sr0.5Co0.8Fe0.2O3−δ (BSCF) oxides with Cr2O3 has been examined between room temperature and 1,100 °C. Differential thermal analysis and thermogravimetric analysis were used to analyze the thermal behavior of BSCF–Cr2O3 binary mixtures in all composition ranges (0–100 mass% BSCF). The reaction products were identified by X-ray analysis after heating at 700–1,100 °C. As we expected, it was found that perovskite-type BSCF oxide had a poor chemical compatibility with the Cr2O3 oxide. In particular, the decomposition process of the BSCF–Cr2O3 binary mixture is quite complex and it starts at about 700–750 °C. The mixtures of BSCF and Cr2O3 oxides reacted forming mixed complex oxides based on (Ba/Sr)FeO3, (Co/Fe)CrO4, and (Ba/Sr)CrO4 mixtures.
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页码：215 / 218
页数：3
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