Journal of Inorganic Materials, Volume. 37, Issue 12, 1267(2022)
Molten Salt Corrosion Behaviors and Mechanisms of Ytterbium Silicate Environmental Barrier Coating
Figures & Tables(11)
. XRD patterns and SEM morphologies of as-sprayed Yb2SiO5/Yb2Si2O7/Si coating
. Macro-photographs of Yb2SiO5/Yb2Si2O7/Si coating after molten salt corrosion for different time
. XRD patterns of Yb2SiO5/Yb2Si2O7/Si coating after molten salt corrosion for different time
. Surface morphologies of Yb2SiO5/Yb2Si2O7/Si coating after molten salt corrosion for different time and correponding EDS analyses of different areas
. Cross-sectional morphologies and corresponding element analyses of Yb2SiO5 top layer after molten salt corrosion for different time
. Cross-sectional morphologies and corresponding EDS element mappings of Yb2SiO5/Yb2Si2O7/Si EBCs after molten salt corrosion for different time
. High-magnification cross-sectional morphologies and corresponding EDS mappings of infiltration zone in Yb2Si2O7 interlayer after molten salt corrosion for different time
. Schematic diagrams of Yb2SiO5/Yb2Si2O7/Si coating under Na2SO4+25% NaCl molten salt corrosion at 900 ℃
Table 1. Operating parameters used for vacuum plasma spraying
View tableView in ArticleTable 1. Operating parameters used for vacuum plasma spraying
Yb2SiO5 Yb2Si2O7 Si Primary Ar/(L·min-1) 46 53 52 Secondary H2/(L·min-1) 14 10 13 Carrier Ar/(L·min-1) 2.3 2.3 2.0 Spray distance/mm 220 220 290
Table 2. EDS elemental compositions of the marked regions in
Fig. 7 /%(in atom)View tableView in ArticleTable 2. EDS elemental compositions of the marked regions in
Fig. 7 /%(in atom)Position Yb Si Na O 1 21.69 14.27 1.98 62.06 2 24.91 12.57 - 62.52 3 18.29 18.09 - 63.62 4 10.15 18.67 2.41 58.77 5 22.50 13.75 1.67 62.08 6 24.92 12.57 - 62.51 7 18.03 18.31 - 63.66 8 8.95 19.25 13.25 58.55 9 22.93 13.20 2.04 61.82 10 24.45 12.96 - 62.59 11 17.82 18.04 - 63.25 12 8.91 19.21 13.39 58.49
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Pingping LIU, Xin ZHONG, Le ZHANG, Hong LI, Yaran NIU, Xiangyu ZHANG, Qilian LI, Xuebin ZHENG. Molten Salt Corrosion Behaviors and Mechanisms of Ytterbium Silicate Environmental Barrier Coating[J]. Journal of Inorganic Materials, 2022, 37(12): 1267
Paper Information
Category: EDITORIAL
Received: May. 6, 2022
Accepted: --
Published Online: Jan. 12, 2023
The Author Email: LIU Pingping (ppliu1234@163.com)
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