Pillai, AM and Rajendra, A and Sharma, AK and Bera, Parthasarathi and Poornima, S and Sampath, S (2021) Development of vanadium impregnated flat absorber composite PEO coating on AA6061 alloy. Surface and Coatings Technology, 410. ISSN 02578972
Full text not available from this repository.Abstract
The formation of black plasma electrolytic oxidation (PEO) coating on aluminium alloy using vanadyl sulphate as additive in a silicate-based electrolyte is investigated. A brief discussion on the mechanism of incorporation of vanadium in PEO coating starting with a cationic species of vanadium (i.e., VO2+) in solution is attempted. The coating formation with respect to morphology and composition is systematically studied as a function of process time. With increase in process time, incorporation of vanadium ions in the coating increases and the formation of black colour is attributed to the presence of V3+ and V4+ species in the coating. A 55 ± 5 μm thick flat absorber black coating with high solar absorptance (0.92) and high infrared emittance (0.88) is obtained with a process time of 10 min.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Aluminium alloy, Flat absorber, Plasma electrolytic oxidation, SEM, Thermo-optical properties, XPS |
| Subjects: | CHEMISTRY AND MATERIALS > Chemistry and Materials (General) CHEMISTRY AND MATERIALS > Composite Materials |
| Depositing User: | Smt Bhagya Rekha KA |
| Date Deposited: | 21 Nov 2022 15:49 |
| Last Modified: | 21 Nov 2022 15:49 |
| URI: | http://nal-ir.nal.res.in/id/eprint/13773 |
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