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The Cr‐Nb alloyed layer formed on the surface of low carbon steel by double glow plasma surface alloying could improve the corrosion resistance of the substrate. The morphology and microstructure of the layer were investigated by scanning electron microscopy, energy dispersive spectrometer and X‐ray diffraction. The average thickness of the alloyed layer is approximately 18 µm. A uniform and dense...
In this paper, the Ce1–xSmxO2–x/2 (x = 0.025, 0.05, 0.1, 0.2) samples were synthesized and then mixed with GdBaCo2O5+δ (GBCO) to form GBCO–Ce1–xSmxO2–x/2 composite cathodes. The electrochemical performance of the composite cathodes was investigated by the electrochemical impedance spectroscopy (EIS) as a function of temperature and oxygen partial pressure. The impedance spectra results demonstrated...
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