High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption
The search for new materials with reliable molten calcium–magnesium–alumino–silicate (CMAS) resistance at elevated temperatures is important for the development of advanced aeroengines. In the present study, a novel Y4Al2O9 (YAM)/Y2O3 composite was designed and fabricated from dense samples via the...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Tsinghua University Press
2025-07-01
|
| Series: | Journal of Advanced Ceramics |
| Subjects: | |
| Online Access: | https://www.sciopen.com/article/10.26599/JAC.2025.9221106 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849393922084700160 |
|---|---|
| author | Jie Li Luchao Sun Tiefeng Du Yang Cui Jialin Li Jingyang Wang |
| author_facet | Jie Li Luchao Sun Tiefeng Du Yang Cui Jialin Li Jingyang Wang |
| author_sort | Jie Li |
| collection | DOAJ |
| description | The search for new materials with reliable molten calcium–magnesium–alumino–silicate (CMAS) resistance at elevated temperatures is important for the development of advanced aeroengines. In the present study, a novel Y4Al2O9 (YAM)/Y2O3 composite was designed and fabricated from dense samples via the hot-pressing method. The interactions and mechanisms between the Y4Al2O9/Y2O3 composite and CMAS at 1300 and 1500 °C for durations of 1, 4, 25, and 50 h were thoroughly explored. The results revealed that Y4Al2O9/Y2O3 exhibited substantial resistance to CMAS infiltration at both temperatures, without notable grain-boundary penetration by CMAS glass. More importantly, the incorporation of reaction-active components in the composite accelerated the consumption of molten CMAS constituents and reduced their corrosive activity, which is recognized as the crucial principle for the composition design of anti-CMAS materials. This work provides valuable insights that can guide the design of the composition and advancement of superior CMAS-resistant materials. |
| format | Article |
| id | doaj-art-28b53a9c19244afe880476fd3d03a4c5 |
| institution | Kabale University |
| issn | 2226-4108 2227-8508 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Tsinghua University Press |
| record_format | Article |
| series | Journal of Advanced Ceramics |
| spelling | doaj-art-28b53a9c19244afe880476fd3d03a4c52025-08-20T03:40:14ZengTsinghua University PressJournal of Advanced Ceramics2226-41082227-85082025-07-01147922110610.26599/JAC.2025.9221106High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumptionJie Li0Luchao Sun1Tiefeng Du2Yang Cui3Jialin Li4Jingyang Wang5Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaInstitute of Coating Technology for Hydrogen Gas Turbines, Liaoning Academy of Materials, Shenyang 110016, ChinaShenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, ChinaThe search for new materials with reliable molten calcium–magnesium–alumino–silicate (CMAS) resistance at elevated temperatures is important for the development of advanced aeroengines. In the present study, a novel Y4Al2O9 (YAM)/Y2O3 composite was designed and fabricated from dense samples via the hot-pressing method. The interactions and mechanisms between the Y4Al2O9/Y2O3 composite and CMAS at 1300 and 1500 °C for durations of 1, 4, 25, and 50 h were thoroughly explored. The results revealed that Y4Al2O9/Y2O3 exhibited substantial resistance to CMAS infiltration at both temperatures, without notable grain-boundary penetration by CMAS glass. More importantly, the incorporation of reaction-active components in the composite accelerated the consumption of molten CMAS constituents and reduced their corrosive activity, which is recognized as the crucial principle for the composition design of anti-CMAS materials. This work provides valuable insights that can guide the design of the composition and advancement of superior CMAS-resistant materials.https://www.sciopen.com/article/10.26599/JAC.2025.9221106environmental barrier coating (ebc)y4al2o9 (yam)/y2o3calcium–magnesium–alumino–silicate (cmas)corrosion mechanism |
| spellingShingle | Jie Li Luchao Sun Tiefeng Du Yang Cui Jialin Li Jingyang Wang High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption Journal of Advanced Ceramics environmental barrier coating (ebc) y4al2o9 (yam)/y2o3 calcium–magnesium–alumino–silicate (cmas) corrosion mechanism |
| title | High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption |
| title_full | High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption |
| title_fullStr | High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption |
| title_full_unstemmed | High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption |
| title_short | High temperature interaction of Y4Al2O9/Y2O3 under CMAS exposure: Mechanism of outstanding corrosion resistance through composition design to accelerate reaction-induced CMAS consumption |
| title_sort | high temperature interaction of y4al2o9 y2o3 under cmas exposure mechanism of outstanding corrosion resistance through composition design to accelerate reaction induced cmas consumption |
| topic | environmental barrier coating (ebc) y4al2o9 (yam)/y2o3 calcium–magnesium–alumino–silicate (cmas) corrosion mechanism |
| url | https://www.sciopen.com/article/10.26599/JAC.2025.9221106 |
| work_keys_str_mv | AT jieli hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption AT luchaosun hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption AT tiefengdu hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption AT yangcui hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption AT jialinli hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption AT jingyangwang hightemperatureinteractionofy4al2o9y2o3undercmasexposuremechanismofoutstandingcorrosionresistancethroughcompositiondesigntoacceleratereactioninducedcmasconsumption |