2017 Fiscal Year Final Research Report
Fabrication of EBC film with eutectic structure
| Project/Area Number |
15K06442
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Nihon University |
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Principal Investigator |
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 共晶 / 耐環境皮膜 / 集光加熱 / 凝固 |
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| Outline of Final Research Achievements |
In this project, the preparation method and the formation mechanism of oxide eutectic environmental barrier coating layer containing HfO2 as an edge member on the silicon carbide substrate are developed. In one model, Al2O3-HfO2 eutectic EBC film is prepared by optical zone melting method on the silicon carbide substrate. The components of Al2O3 also react with the free carbon and vaporized as AlO from the molten phase. HfO2 phase also reacts with the free carbon and HfC phase is formed on the silicon carbide substrate, then a high density intermediate layer is formed. The Al2O3-HfO2 eutectic structure grow from the top of the intermediate layer.
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| Free Research Field |
無機材料化学
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