Preparation of a Nano-Laminated Sc 2 SnC MAX Phase Coating on SiC Fibers via the Molten Salt Method.
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| Title: | Preparation of a Nano-Laminated Sc 2 SnC MAX Phase Coating on SiC Fibers via the Molten Salt Method. |
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| Authors: | Wang, Chenyang1,2 (AUTHOR), Yin, Lexiang2 (AUTHOR), Li, Peng1,2 (AUTHOR) lipeng@nimte.ac.cn, Huang, Qing2 (AUTHOR) huangqing@nimte.ac.cn |
| Source: | Materials (1996-1944). Jun2025, Vol. 18 Issue 11, p2633. 14p. |
| Subjects: | Pyrolytic graphite, Chemical vapor deposition, Thermal instability, Fused salts, Raman spectroscopy, Silicon carbide |
| Abstract: | The incorporation of MAX phase interface layers into silicon carbide (SiC) composites has been shown to significantly enhance mechanical properties, particularly under irradiation conditions. However, conventional Ti-based MAX phases suffer from thermal instability and tend to decompose at high temperatures. In this work, an Sc2SnC coating was successfully synthesized onto the surface of SiC fibers (SiCf) via an in situ reaction between metals and pyrolytic carbon (PyC) in a molten salt environment. The PyC layer, pre-deposited by chemical vapor deposition (CVD), served as both a carbon source and a structural template. Characterization by SEM, XRD, and Raman spectroscopy confirmed the formation of Sc2SnC coatings with a distinctive hexagonal flake-like morphology, accompanied by an internal ScCx intermediate layer. By turning the Sc-to-Sn ratio in the molten salt, coatings with varied morphologies were achieved. ScCx was identified as a critical intermediate phase in the synthesis process. The formation of numerous defects during the reaction enhanced element diffusion, resulting in preferential growth orientations and diverse grain structures in the Sc2SnC coating. [ABSTRACT FROM AUTHOR] |
| Copyright of Materials (1996-1944) is the property of MDPI 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.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 185869795 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Preparation of a Nano-Laminated Sc 2 SnC MAX Phase Coating on SiC Fibers via the Molten Salt Method. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Chenyang%22">Wang, Chenyang</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yin%2C+Lexiang%22">Yin, Lexiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Peng%22">Li, Peng</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> lipeng@nimte.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Huang%2C+Qing%22">Huang, Qing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> huangqing@nimte.ac.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Materials+%281996-1944%29%22">Materials (1996-1944)</searchLink>. Jun2025, Vol. 18 Issue 11, p2633. 14p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Pyrolytic+graphite%22">Pyrolytic graphite</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+vapor+deposition%22">Chemical vapor deposition</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+instability%22">Thermal instability</searchLink><br /><searchLink fieldCode="DE" term="%22Fused+salts%22">Fused salts</searchLink><br /><searchLink fieldCode="DE" term="%22Raman+spectroscopy%22">Raman spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Silicon+carbide%22">Silicon carbide</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The incorporation of MAX phase interface layers into silicon carbide (SiC) composites has been shown to significantly enhance mechanical properties, particularly under irradiation conditions. However, conventional Ti-based MAX phases suffer from thermal instability and tend to decompose at high temperatures. In this work, an Sc2SnC coating was successfully synthesized onto the surface of SiC fibers (SiCf) via an in situ reaction between metals and pyrolytic carbon (PyC) in a molten salt environment. The PyC layer, pre-deposited by chemical vapor deposition (CVD), served as both a carbon source and a structural template. Characterization by SEM, XRD, and Raman spectroscopy confirmed the formation of Sc2SnC coatings with a distinctive hexagonal flake-like morphology, accompanied by an internal ScCx intermediate layer. By turning the Sc-to-Sn ratio in the molten salt, coatings with varied morphologies were achieved. ScCx was identified as a critical intermediate phase in the synthesis process. The formation of numerous defects during the reaction enhanced element diffusion, resulting in preferential growth orientations and diverse grain structures in the Sc2SnC coating. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Materials (1996-1944) is the property of MDPI 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: 10.3390/ma18112633 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 2633 Subjects: – SubjectFull: Pyrolytic graphite Type: general – SubjectFull: Chemical vapor deposition Type: general – SubjectFull: Thermal instability Type: general – SubjectFull: Fused salts Type: general – SubjectFull: Raman spectroscopy Type: general – SubjectFull: Silicon carbide Type: general Titles: – TitleFull: Preparation of a Nano-Laminated Sc 2 SnC MAX Phase Coating on SiC Fibers via the Molten Salt Method. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Chenyang – PersonEntity: Name: NameFull: Yin, Lexiang – PersonEntity: Name: NameFull: Li, Peng – PersonEntity: Name: NameFull: Huang, Qing IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2025 Type: published Y: 2025 Identifiers: – Type: issn-print Value: 19961944 Numbering: – Type: volume Value: 18 – Type: issue Value: 11 Titles: – TitleFull: Materials (1996-1944) Type: main |
| ResultId | 1 |
