Effects of grain-boundary diffusions and modifications on the electrical conductivities of YSZ coatings with columnar microstructure
作者： B. Meng , M. Kong , Q.Q. Yang , H. Zhang , Y.J. Zhu
DOI: 10.1016/J.SSI.2014.09.024
关键词:
摘要: Abstract The YSZ coatings with nanocrystalline columnar structure were prepared by magnetron sputtering and then dip-coated a Fe-containing sol. elements from sol decomposition products diffused at 600 °C for 2 h to modify the grain boundaries. electrical conductivities of Fe-modified coating are predominantly ionic 6–7 times higher than those as-deposited coating. conductivity increment is explained on scavenging effects Fe 2 O 3 intergranular siliceous phase based fact that strong segregation Si into triple junctions verified EDS analysis.
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