Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings
An as-deposited Al-Cu-Fe-Cr film was annealed in flowing argon to study development of a quasicrystalline approximant microstructure. Sputter profile x-ray photoemission spectroscopy analysis showed oxygen incorporation reached approximately 70 at.% at the surface of the film, declined monotonically...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
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2005
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| _version_ | 1797062802546884608 |
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| author | Daniels, M Zabinski, J Wu, H Grovenor, C Bilello, J |
| author_facet | Daniels, M Zabinski, J Wu, H Grovenor, C Bilello, J |
| author_sort | Daniels, M |
| collection | OXFORD |
| description | An as-deposited Al-Cu-Fe-Cr film was annealed in flowing argon to study development of a quasicrystalline approximant microstructure. Sputter profile x-ray photoemission spectroscopy analysis showed oxygen incorporation reached approximately 70 at.% at the surface of the film, declined monotonically, and stabilized at ∼10 at.% at a depth of 160 nm. Synchrotron grazing incidence x-ray scattering was used to probe the structure of the coating at various penetration depths by altering the angle of the incident x-ray beam. An amorphous structure was observed near the termination surface, which coexisted with a compressively strained crystalline aluminum. These phases were the dominant microstructure to a depth of 110 nm. Below 150 nm, the film was primarily O1 decagonal approximant. Cross-section transmission electron microscopy elucidated a columnar growth morphology with associated porosity in the interstices between the columns. The resulting development of the Al-Cu-Fe-Cr decagonal approximant coatings from the precursor is reported. © 2005 Materials Research Society. |
| first_indexed | 2024-03-06T20:50:47Z |
| format | Journal article |
| id | oxford-uuid:37800daf-e2f9-4fa1-a505-fcb989655632 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:50:47Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:37800daf-e2f9-4fa1-a505-fcb9896556322022-03-26T13:44:23ZMicrostructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatingsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:37800daf-e2f9-4fa1-a505-fcb989655632EnglishSymplectic Elements at Oxford2005Daniels, MZabinski, JWu, HGrovenor, CBilello, JAn as-deposited Al-Cu-Fe-Cr film was annealed in flowing argon to study development of a quasicrystalline approximant microstructure. Sputter profile x-ray photoemission spectroscopy analysis showed oxygen incorporation reached approximately 70 at.% at the surface of the film, declined monotonically, and stabilized at ∼10 at.% at a depth of 160 nm. Synchrotron grazing incidence x-ray scattering was used to probe the structure of the coating at various penetration depths by altering the angle of the incident x-ray beam. An amorphous structure was observed near the termination surface, which coexisted with a compressively strained crystalline aluminum. These phases were the dominant microstructure to a depth of 110 nm. Below 150 nm, the film was primarily O1 decagonal approximant. Cross-section transmission electron microscopy elucidated a columnar growth morphology with associated porosity in the interstices between the columns. The resulting development of the Al-Cu-Fe-Cr decagonal approximant coatings from the precursor is reported. © 2005 Materials Research Society. |
| spellingShingle | Daniels, M Zabinski, J Wu, H Grovenor, C Bilello, J Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title | Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title_full | Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title_fullStr | Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title_full_unstemmed | Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title_short | Microstructure and chemistry of annealed Al-Cu-Fe-Cr quasicrystalline approximant coatings |
| title_sort | microstructure and chemistry of annealed al cu fe cr quasicrystalline approximant coatings |
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