Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement
We report results of Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Analysis of X-rays (EDAX), X-ray Photoelectron Spectroscopy (XPS), X-ray Reflectivity (XRR), and X-ray Diffraction (XRD) and residual stress measurement studies of Ag-silica composite films on Al(001) co-depo...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-01-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0161777 |
| _version_ | 1797332079842689024 |
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| author | Subrata Pramanik Mrinmay Kumar Mukhopadhyay Ripan Kumar Biswas Jiten Ghosh Alokmay Datta |
| author_facet | Subrata Pramanik Mrinmay Kumar Mukhopadhyay Ripan Kumar Biswas Jiten Ghosh Alokmay Datta |
| author_sort | Subrata Pramanik |
| collection | DOAJ |
| description | We report results of Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Analysis of X-rays (EDAX), X-ray Photoelectron Spectroscopy (XPS), X-ray Reflectivity (XRR), and X-ray Diffraction (XRD) and residual stress measurement studies of Ag-silica composite films on Al(001) co-deposited from precursors and spin-coated at different frequencies under ambient conditions. FESEM and EDAX show Ag nanoparticle formation, and XRD, XPS, and XRR show Ag0.3Al0.7 alloy and Ag-rich silicate Ag2Si2O5 formation in all samples. The alloy is non-stoichiometric and non-equilibrium, while the silicate forms at high oxygen pressure. XRR shows the presence of three layers, nanoparticles on top, silicate in the middle, and alloy at the bottom, on an Ag-doped Al substrate. Film thickness decreases exponentially with frequency. Individual layers increase in crystal domain size with a frequency of 3000 rpm when the silicate layer thins below unit cell thickness and the growth has a two-dimensional preference. Our results suggest total confinement by film thinning and local confinement from the Ag nanolayer. Residual stress measurements on the films deposited at 500 and 5000 rpms show a gradual increase in the tensile stress. The increase in spinning frequency reveals the formation of high pressure ambience. |
| first_indexed | 2024-03-08T07:44:27Z |
| format | Article |
| id | doaj.art-e8af7a845cfa4024a2446226531bcc08 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-08T07:44:27Z |
| publishDate | 2024-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-e8af7a845cfa4024a2446226531bcc082024-02-02T16:46:05ZengAIP Publishing LLCAIP Advances2158-32262024-01-01141015025015025-1910.1063/5.0161777Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinementSubrata Pramanik0Mrinmay Kumar Mukhopadhyay1Ripan Kumar Biswas2Jiten Ghosh3Alokmay Datta4Materials Characterization Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, IndiaSurface Physics and Materials Science Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, IndiaMaterials Characterization Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, IndiaMaterials Characterization Division, CSIR-Central Glass and Ceramic Research Institute, 196, Raja S.C. Mullick Road, Jadavpur, Kolkata 700032, IndiaDepartment of Physics, University of Calcutta, 92, A.P.C. Roy Road, Kolkata 700009, IndiaWe report results of Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive Analysis of X-rays (EDAX), X-ray Photoelectron Spectroscopy (XPS), X-ray Reflectivity (XRR), and X-ray Diffraction (XRD) and residual stress measurement studies of Ag-silica composite films on Al(001) co-deposited from precursors and spin-coated at different frequencies under ambient conditions. FESEM and EDAX show Ag nanoparticle formation, and XRD, XPS, and XRR show Ag0.3Al0.7 alloy and Ag-rich silicate Ag2Si2O5 formation in all samples. The alloy is non-stoichiometric and non-equilibrium, while the silicate forms at high oxygen pressure. XRR shows the presence of three layers, nanoparticles on top, silicate in the middle, and alloy at the bottom, on an Ag-doped Al substrate. Film thickness decreases exponentially with frequency. Individual layers increase in crystal domain size with a frequency of 3000 rpm when the silicate layer thins below unit cell thickness and the growth has a two-dimensional preference. Our results suggest total confinement by film thinning and local confinement from the Ag nanolayer. Residual stress measurements on the films deposited at 500 and 5000 rpms show a gradual increase in the tensile stress. The increase in spinning frequency reveals the formation of high pressure ambience.http://dx.doi.org/10.1063/5.0161777 |
| spellingShingle | Subrata Pramanik Mrinmay Kumar Mukhopadhyay Ripan Kumar Biswas Jiten Ghosh Alokmay Datta Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement AIP Advances |
| title | Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement |
| title_full | Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement |
| title_fullStr | Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement |
| title_full_unstemmed | Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement |
| title_short | Ambient formation of high pressure Ag2Si2O5 and non-stoichiometric Ag0.3Al0.7 alloy under confinement |
| title_sort | ambient formation of high pressure ag2si2o5 and non stoichiometric ag0 3al0 7 alloy under confinement |
| url | http://dx.doi.org/10.1063/5.0161777 |
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