标题：Microstructure and properties of nanostructured zirconia coatings deposited by atmosphere plasma spraying process
作者：Wang, C.M. ;Sun, H.F. ;Cui, H.Z. ;Ni, L.Y.
作者机构：[Wang, C.M. ;Sun, H.F. ;Cui, H.Z. ;Ni, L.Y. ] School of Material Science and Engineering, Shandong University of Science and Technology, 579 Qianwanga 更多
来源：Materials Research Innovations
摘要：Nanostructured yttria zirconia coatings were deposited by air plasma spraying process with agglomerated yttria partially stabilised zirconia (ZrO2-6.8%Y2O3) powder. Field emission scanning electron Microscope, scanning electronic microscopy, transmission electron microscopy and X-ray diffraction were applied to analyse the phase composition and microstructure of the nanostructured powders and coating. The results showed that the agglomerated powders and as-sprayed nanostructured coating were both consisted of tetragonal phase; No monoclinic phase were observed in the coating .The average grain size of the powders and coating were 23 and 45 nm, respectively. The coating presented three kinds of microstructures, columnar grains, equiaxed grains and non-molten particles.
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