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Improving the interface adherence at sealings in solid oxide cell stacks

机译：改善固体氧化物电池堆中密封件的界面粘附

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摘要

Thermal cycling of planar solid oxide cell (SOC) stacks can lead to failure due to thermal stresses arising from differences in thermal expansion of the stack's materials. The interfaces between the cell, interconnect, and sealing are particularly critical. Hence, understanding possible failure mechanisms at the interfaces and developing robust sealing concepts are important for stack reliability. In this work, the mechanical performance of interfaces in the sealing region of SOC stacks is studied. Joints comprising Crofer22APU (preoxidized or coated with MnCo2O4 or Al2O3) are sealed using V11 glass. The fracture energy of the joints is measured, and the fractured interfaces are analyzed using microscopy. The results show that choosing the right coating solution would increase the fracture energy of the sealing area by more than 70%. We demonstrate that the test methodology could also be used to test the adhesion of thin coatings on metallic substrates.
机译：平面固体氧化物电池（SOC）堆叠的热循环可能导致由于堆叠材料的热膨胀差异而产生的热应力导致失效。电池，互连和密封之间的界面特别关键。因此，了解接口和开发鲁棒密封概念的可能失败机制对于堆栈可靠性是重要的。在这项工作中，研究了SOC堆叠密封区域中的接口的机械性能。使用v11玻璃密封包含克罗夫罐22apu（用MnCo2O4或Al 2 O 3的预氧化或涂覆的用MnCo2O4或Al 2 O 3）的关节。测量关节的断裂能量，使用显微镜分析裂缝界面。结果表明，选择右涂层溶液将使密封面积的断裂能量增加超过70％。我们证明了测试方法也可用于测试薄涂层对金属衬底的粘附性。

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  • 来源
    《Journal of Materials Research》 |2019年第7期|1167-1178|共12页
  • 作者

    Ritucci Ilaria; Kiebach Ragnar; Talic Belma; Han Li; Zielke Philipp; Hendriksen Peter V; Frandsen Henrik L.;

  • 作者单位

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

    Tech Univ Denmark Dept Energy Convers & Storage DK-4000 Roskilde Denmark;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    joining; toughness; fracture;

    机译：加入;韧性;骨折;

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