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Life Prediction Of Coated And Uncoated Metallic Interconnect For Solid Oxide Fuel Cell Applications

机译：固体氧化物燃料电池应用的有涂层和无涂层金属互连件的寿命预测

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摘要

In this paper, we present an integrated experimental and modeling methodology in predicting the life of coated and uncoated metallic interconnect (IC) for solid oxide fuel cell (SOFC) applications. The ultimate goal is to provide cell designer and manufacture with a predictive methodology such that the life of the IC system can be managed and optimized through different coating thickness to meet the overall cell designed life. Crofer 22 APU is used as the example IC material system. The life of coated and uncoated Crofer 22 APU under isothermal cooling was predicted by comparing the predicted interfacial strength and the interfacial stresses induced by the cooling process from the operating temperature to room temperature, together with the measured oxide scale growth kinetics. It was found that the interfacial strength between the oxide scale and the Crofer 22 APU substrate decreases with the growth of the oxide scale, and that the interfacial strength for the oxide scale/spinel coating interface is much higher than that of the oxide scale/Crofer 22 APU substrate interface. As expected, the predicted life of the coated Crofer 22 APU is significantly longer than that of the uncoated Crofer 22 APU.
机译：在本文中，我们提出了一种集成的实验和建模方法，用于预测固体氧化物燃料电池（SOFC）应用的带涂层和无涂层金属互连（IC）的寿命。最终目标是为电池设计人员和制造人员提供一种预测性方法，以便可以通过不同的涂层厚度来管理和优化IC系统的寿命，以满足整个电池设计寿命。 Crofer 22 APU被用作示例IC材料系统。通过比较预测的界面强度和由冷却过程从工作温度到室温的界面应力，以及测得的氧化皮生长动力学，可以预测等温冷却下带涂层和不带涂层的Crofer 22 APU的寿命。已经发现，氧化皮和Crofer 22 APU基材之间的界面强度随着氧化皮的增长而降低，并且氧化皮/尖晶石涂层界面的界面强度比氧化皮/ Crofer的界面强度高得多。 22 APU基板接口。如预期的那样，带涂层的Crofer 22 APU的预期寿命明显比未带涂层的Crofer 22 APU的预期寿命长。

著录项

  • 来源
    《Journal of power sources》 |2009年第2期|1044-1050|共7页
  • 作者

    W.N. Liu; X. Sun; E. Stephens; M.A. Khaleel;

  • 作者单位

    Pacific Northwest National Laboratory, P.O. Box 999,906 Battelle Boulevard, Richland. WA 99354, United States;

    Pacific Northwest National Laboratory, P.O. Box 999,906 Battelle Boulevard, Richland. WA 99354, United States;

    Pacific Northwest National Laboratory, P.O. Box 999,906 Battelle Boulevard, Richland. WA 99354, United States;

    Pacific Northwest National Laboratory, P.O. Box 999,906 Battelle Boulevard, Richland. WA 99354, United States;

  • 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

    ferritic stainless steel interconnect; crofer 22 apu; solid oxide fuel cell (sofc); oxide scale; spinel coating; indentation test;

    机译：铁素体不锈钢互连;crofer 22 apu;固体氧化物燃料电池（sofc）;氧化物水垢;尖晶石涂层;压痕测试;

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