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<p>Coatings based on cobalt–manganese spinel (Mn, Co)·(Mn, Co)<sub>2</sub>O<sub>4</sub> were obtained on the surface of Crofer 22 APU using the method of non-stationary electrolysis. The morphology of the surface according to scanning electron microscopy has a crack line structure. The analysis of the surface layers of the coatings showed that its main components are compounds of manganese (4 +), cobalt (3 +) and oxygen (2-). To describe the surface topography of the coating based on cobalt–manganese spinel, the surface of the coating was reconstructed by non-contact optical profilometry. Area specific resistance was measured at 850&#xa0;°C for 1000&#xa0;h in air.</p> Graphical Abstract <p></p>

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The Structural Properties and High-Temperature Oxidation Behavior of Co-Mn Spinel Coatings for SOFC Interconnect Application

  • 期刊论文

  • 发表日期：

    2025年1月11日

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  • A. V. Khramenkova,
  • O. A. Finaeva,
  • D. N. Izvarina,
  • A. N. Yatsenko,
  • A. S. Korotkov,
  • I. I. Lyatun,
  • O. V. Pikalov,
  • N. V. Demeneva,
  • S. I. Bredikhin

摘要

Coatings based on cobalt–manganese spinel (Mn, Co)·(Mn, Co)2O4 were obtained on the surface of Crofer 22 APU using the method of non-stationary electrolysis. The morphology of the surface according to scanning electron microscopy has a crack line structure. The analysis of the surface layers of the coatings showed that its main components are compounds of manganese (4 +), cobalt (3 +) and oxygen (2-). To describe the surface topography of the coating based on cobalt–manganese spinel, the surface of the coating was reconstructed by non-contact optical profilometry. Area specific resistance was measured at 850 °C for 1000 h in air.

Graphical Abstract