Chemical Degradation of the Ternary Al2O3–YAG–ZrO2 Eutectic Ceramic by Molten CMAS.
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| Title: | Chemical Degradation of the Ternary Al |
|---|---|
| Authors: | Portebois, L.1 (AUTHOR) leo.portebois@univ-lorraine.fr, Mathieu, S.1 (AUTHOR), Vilasi, M.1 (AUTHOR), Berthod, P.1 (AUTHOR), Panteix, P-J.1 (AUTHOR), Podgorski, M.2 (AUTHOR) |
| Source: | High Temperature Corrosion of Materials. Oct2024, Vol. 101 Issue 5, p1117-1128. 12p. |
| Subjects: | Heat resistant materials, Eutectic reactions, Chemical decomposition, Turbine blades, Airplane motors, Eutectics |
| Abstract: | Regarding potential high temperature applications of materials based on the ternary Al2O3-YAG-ZrO2 (AYZ) eutectic system for turbine blades, their environmental behaviour has to be evaluated in near-service conditions. CMAS attack is one of the phenomena limiting lifetime of ceramic E/TBC coatings for aircraft engines. The present study reports an assessment of the reactivity of AYZ eutectic material facing with two molten CMAS. The effect of test duration (up to 500 h), CMAS composition (with or without Fe2O3), microstructure (interlamellar distance), temperature (1250 and 1350 °C) as well as thermal cycling resistance were investigated. Results evidenced that the interaction of CMAS with AYZ eutectic ceramic was limited regardless of the microstructure. No infiltration of molten CMAS within the eutectic ceramic nor mechanical rupture between CMAS and AYZ was observed. The dissolution of AYZ leads to the rapid formation of anorthite with the CMAS components that hinders further reactions. The inward growth of MgAl2O4 spinel in place of the Al2O3 network occurs in accordance with the thermodynamic available data and without any effect on AYZ integrity. [ABSTRACT FROM AUTHOR] |
| Copyright of High Temperature Corrosion of Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 180849132 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Chemical Degradation of the Ternary Al<subscript>2</subscript>O<subscript>3</subscript>–YAG–ZrO<subscript>2</subscript> Eutectic Ceramic by Molten CMAS. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Portebois%2C+L%2E%22">Portebois, L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> leo.portebois@univ-lorraine.fr</i><br /><searchLink fieldCode="AR" term="%22Mathieu%2C+S%2E%22">Mathieu, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vilasi%2C+M%2E%22">Vilasi, M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Berthod%2C+P%2E%22">Berthod, P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Panteix%2C+P-J%2E%22">Panteix, P-J.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Podgorski%2C+M%2E%22">Podgorski, M.</searchLink><relatesTo>2</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22High+Temperature+Corrosion+of+Materials%22">High Temperature Corrosion of Materials</searchLink>. Oct2024, Vol. 101 Issue 5, p1117-1128. 12p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Heat+resistant+materials%22">Heat resistant materials</searchLink><br /><searchLink fieldCode="DE" term="%22Eutectic+reactions%22">Eutectic reactions</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+decomposition%22">Chemical decomposition</searchLink><br /><searchLink fieldCode="DE" term="%22Turbine+blades%22">Turbine blades</searchLink><br /><searchLink fieldCode="DE" term="%22Airplane+motors%22">Airplane motors</searchLink><br /><searchLink fieldCode="DE" term="%22Eutectics%22">Eutectics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Regarding potential high temperature applications of materials based on the ternary Al2O3-YAG-ZrO2 (AYZ) eutectic system for turbine blades, their environmental behaviour has to be evaluated in near-service conditions. CMAS attack is one of the phenomena limiting lifetime of ceramic E/TBC coatings for aircraft engines. The present study reports an assessment of the reactivity of AYZ eutectic material facing with two molten CMAS. The effect of test duration (up to 500 h), CMAS composition (with or without Fe2O3), microstructure (interlamellar distance), temperature (1250 and 1350 °C) as well as thermal cycling resistance were investigated. Results evidenced that the interaction of CMAS with AYZ eutectic ceramic was limited regardless of the microstructure. No infiltration of molten CMAS within the eutectic ceramic nor mechanical rupture between CMAS and AYZ was observed. The dissolution of AYZ leads to the rapid formation of anorthite with the CMAS components that hinders further reactions. The inward growth of MgAl2O4 spinel in place of the Al2O3 network occurs in accordance with the thermodynamic available data and without any effect on AYZ integrity. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of High Temperature Corrosion of Materials is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s11085-024-10258-7 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 12 StartPage: 1117 Subjects: – SubjectFull: Heat resistant materials Type: general – SubjectFull: Eutectic reactions Type: general – SubjectFull: Chemical decomposition Type: general – SubjectFull: Turbine blades Type: general – SubjectFull: Airplane motors Type: general – SubjectFull: Eutectics Type: general Titles: – TitleFull: Chemical Degradation of the Ternary Al2O3–YAG–ZrO2 Eutectic Ceramic by Molten CMAS. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Portebois, L. – PersonEntity: Name: NameFull: Mathieu, S. – PersonEntity: Name: NameFull: Vilasi, M. – PersonEntity: Name: NameFull: Berthod, P. – PersonEntity: Name: NameFull: Panteix, P-J. – PersonEntity: Name: NameFull: Podgorski, M. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 27318397 Numbering: – Type: volume Value: 101 – Type: issue Value: 5 Titles: – TitleFull: High Temperature Corrosion of Materials Type: main |
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