Mishra, Suman K and Kumar, V and Tiwari, S K and Mishra, T and Angula, G and Adhikari, S (2016) Development and degradation behavior of protective multilayer coatings for aluminum reflectors for solar thermal applications. Thin Solid Films, 619 (IF- 1.879). pp. 202-207.
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The fabrication of multilayers Al-SiO2, Al-SiO2-TiO2, Al-Ni-Ag-SiO2, Al-Ni-Ag-SiO2-TiO2 on anodized aluminum sheet by the combination of physical vapor deposition sputtering and sol-gel coating process has been done. The multilayers of very high reflectivity (95% or more) could be developed on Al. The Al mirror reflectivity has been enhanced to 95% by a thin coating of Ag on aluminum in between the substrate and transparent and protective layers of SiO2 and SiO2-TiO2 The degradation behavior of these multilayers in accelerated weathering condition and under salt spray with different hours of exposure vis a vis reflectance is investigated. These coatings showed higher reflectance and sustenance in accelerated weathering and salt spray environment making it potential multilayered coating for solar thermal applications.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Keywords Solar thermal applicationsAluminum reflectorsMultilayer coating |
| Subjects: | Mechanical Engineering |
| Divisions: | Metal Extraction and Forming |
| Depositing User: | Users 5 not found. |
| Date Deposited: | 11 Aug 2017 11:11 |
| Last Modified: | 20 Nov 2017 06:37 |
| URI: | http://eprints.nmlindia.org/id/eprint/7516 |
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