Interaction between metallic interconnect and constituent oxides of (La, Sr)MnO3 coating of solid oxide fuel cells
Interaction between metallic interconnect and constituent oxides of (La, Sr)MnO3 coating of solid oxide fuel cells
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DOI：
10.1016/j.jeurceramsoc.2005.10.002
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发表时间：
2006
影响因子：
5.7
通讯作者：
Y. Zhen;S. Jiang;Sam Zhang;V. Tan
中科院分区：
文献类型：
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作者：
Y. Zhen;S. Jiang;Sam Zhang;V. Tan
在800-900°C空气中研究了Fe-Cr合金互连线与Sr掺杂LaMnO 3（LSM）涂层的组分氧化物La 2 O3、SrO和Mn 2 O3之间的化学相互作用。Fe-Cr合金金属互连件与氧化物之间的Cr沉积反应随氧化物的性质而显著变化。Fe-Cr合金与La 2 O3和Mn 2 O3氧化物涂层之间的相互作用主要导致LaCrO 3和（Cr，Mn）3 O 4的形成，而SrO氧化物涂层的情况下，Cr2 O3是主要产物。在LSM涂层的情况下，（Cr，Mn）3 O 4和Cr2 O3的形成被确定。结果表明，Fe-Cr合金互连线与LSM涂层之间的化学相互作用很可能与LSM表面氧化物物种（如SrO和MnO）最初富集或偏聚有关，特别是在反应的早期阶段。
The chemical interaction between Fe–Cr alloy interconnect and constituent oxides of Sr-doped LaMnO3(LSM) coating, La2O3, SrO and Mn2O3, is investigated at 800–900°C in air. The Cr deposition reaction between the Fe–Cr alloy metallic interconnect and oxides varies significantly with the nature of the oxides. The interaction between the Fe–Cr alloy and La2O3and Mn2O3oxide coatings primarily results in the formation of LaCrO3and (Cr, Mn)3O4while in the case of SrO oxide coating, Cr2O3is the main product. In the case of LSM coating, the formation of (Cr, Mn)3O4and Cr2O3is identified. The results indicate that the chemical interaction between the Fe–Cr alloy interconnect and LSM coating is most likely related to the surface oxide species such as SrO and MnOxinitially enriched or segregated on the surface of LSM particularly in the early stages of the reaction.