Journal of Inorganic Materials, Volume. 39, Issue 6, 671(2024)
Figures & Tables(15)
1. XRD patterns of the surfaces of YAG/Al2O3 coatings after CMAS corrosion at 1300 ℃ for (a) 1, (b) 4, and (c) 25 h Colorful patterns are available on website
2. Surface morphologies of YAG/Al2O3 coatings after CMAS corrosion
3. TEM analyses of YAG/Al2O3 coating annealed at 1100 ℃ after CMAS corrosion for 1 h
4. Cross-sectional morphologies of YAG/Al2O3 coatings after CMAS corrosion
5. TEM analyses of YAG/Al2O3 coating annealed at 1300 ℃ after CMAS corrosion for 4 h
6. EDS mappings of the cross-section of YAG/Al2O3 coating annealed at 1100 ℃ after CMAS corrosion for 1 h
7. EDS mappings of the cross-section of YAG/Al2O3 coating annealed at 1500 ℃ after CMAS corrosion for 1 h
S1. High-magnification cross-section observations of YAG/Al2O3 coatings annealed at 1300 ℃ after CMAS corrosion for (a) 1, (b) 4, and (c) 25 h
S2. High-magnification cross-section observations of YAG/Al2O3 coatings annealed at 1500 ℃ after CMAS corrosion for (a) 1, (b) 4, and (c) 25 h
S3. Cross-section observations of (a) as-deposited YAG/Al2O3 coating and coatings annealed at (b) 1100, (c) 1300, and (d) 1500 ℃
S4. Equivalent thickness statistics of precipitation YAG garnet-structure solid solution of coatings annealed at different temperatures
Table 1. Atmospheric plasma spraying parameters for YAG/Al2O3 coating
View tableView in ArticleTable 1. Atmospheric plasma spraying parameters for YAG/Al2O3 coating
Current/A Ar flow rate/slpm H2 flow rate/slpm Rotation velocity/% Distance/mm 650 40 12 30 110
Table 1. TEM-EDS results of the regions marked with letters E, F, and G in
Fig. 5(c) (%, in atom)View tableView in ArticleTable 1. TEM-EDS results of the regions marked with letters E, F, and G in
Fig. 5(c) (%, in atom)Region O Mg Al Si Ca Y Phase E 43.12±4.00 6.84±0.22 3.49±0.30 21.96±1.32 24.59±2.26 Ca2MgSi2O7 F 50.79±0.93 5.61±0.19 6.51±0.27 17.50±0.82 11.34±0.49 8.25±0.42 YAG G 59.33±2.03 0.54±0.14 4.95±0.26 19.53±0.73 13.38±0.89 2.27±0.14 CMAS
Table 2. SEM-EDS analytical results of the phases on the surface of YAG/Al2O3 coating annealed at 1100 ℃ after CMAS corrosion for 1 h (%, in atom)
View tableView in ArticleTable 2. SEM-EDS analytical results of the phases on the surface of YAG/Al2O3 coating annealed at 1100 ℃ after CMAS corrosion for 1 h (%, in atom)
Region O Mg Al Si Ca Y Phase A 50.41±1.59 — 17.47±0.70 22.27±0.71 10.16±0.45 — CaAl2Si2O8 B 54.10±3.25 — 16.47±0.78 19.42±0.95 10.00±1.84 — CaAl2Si2O8 C 58.95±0.44 5.60±0.29 3.79±0.49 16.57±0.32 15.09±0.20 — Ca2MgSi2O7 D 39.07±1.11 3.70±0.34 17.29±0.53 17.48±0.52 12.41±0.50 10.06±0.62 YAG E 49.54±1.04 3.23±0.40 4.73±0.18 23.34±0.41 13.81±1.60 5.34±0.71 CMAS
Table 3. SEM-EDS analytical results of phases in the cross-section of YAG/Al2O3 coating annealed at 1300 ℃ after CMAS corrosion for 4 h (%, in atom)
View tableView in ArticleTable 3. SEM-EDS analytical results of phases in the cross-section of YAG/Al2O3 coating annealed at 1300 ℃ after CMAS corrosion for 4 h (%, in atom)
Region O Mg Al Si Ca Y Phase A 24.15±0.56 — 24.40±0.29 34.29±0.21 17.16±0.22 — CaAl2Si2O8 B 23.06±3.46 5.43±0.30 11.72±0.42 28.70±1.50 31.09±1.49 — CMAS C 18.45±2.17 3.63±0.42 8.98±0.70 35.71±1.30 20.57±0.38 12.67±0.82 YAG D 26.70±2.79 2.13±0.61 29.42±0.78 14.12±1.62 10.47±0.54 17.18±0.81 YAG E 31.18±1.51 1.40±0.17 10.56±0.53 31.3±0.53 21.09±0.73 4.47±0.14 CMAS
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Jie LI, Zhixin LUO, Yang CUI, Guangheng ZHANG, Luchao SUN, Jingyang WANG.
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Received: Jan. 2, 2024
Accepted: --
Published Online: Jul. 31, 2024
The Author Email: Luchao SUN (lcsun@imr.ac.cn), Jingyang WANG (jywang@imr.ac.cn)
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