Analysis of Tungsten-Alumina Nanocomposite Thin Films on SS304 Substrate
- 15 April 2021
- journal article
- Published by Trans Tech Publications, Ltd. in Applied Mechanics and Materials
- Vol. 903, 125-132
- https://doi.org/10.4028/www.scientific.net/amm.903.125
Abstract
Higher solar absorptance and lower thermal emittance are the key factors for solar collectors. The use of thin films that are having mechanically resistant coatings are common practice in industries. The primary motivation of carrying this research work is to lower thermal emittance and maximize solar absorptance on SS304 substrate material. W-Al2O3 composite coatings are developed using magnetron sputtering process by considering the process parameters. The experimental plan is achieved based on Taguchi L9 orthogonal under various levels for deposition parameters. The tungsten and alumina thin films deposited using a co-sputtering were characterized using 410 - solar instrument for measuring solar absorptance and ET 100 Emissometer for measuring thermal emittance. The optimization for process parameters on thermal emittance and absorptance were carried out. It was found that for deposition parameters of DC power 750W, RF power 1050W and Argon gas flow rate of 250 sccm, absorptance of 0.758 with thermal emittance of 0.061 is observed with deposition was carried out on SS304 substrates.Keywords
This publication has 15 references indexed in Scilit:
- Corrosion Behaviour of Sputtered Alumina Thin FilmsJournal of The Institution of Engineers (India): Series D, 2015
- Control of thermal emittance of stainless steel using sputtered tungsten thin films for solar thermal power applicationsSolar Energy Materials and Solar Cells, 2015
- Double layer SiO2/Al2O3 high emissivity coatings on stainless steel substrates using simple spray deposition systemApplied Surface Science, 2014
- Stability of W-Al2O3 cermet based solar coating for receiver tube operating at high temperatureSolar Energy Materials and Solar Cells, 2010
- Mechanical properties of sputtered silicon nitride thin filmsJournal of Applied Physics, 2003
- Parabolic trough reflector manufactured with aluminum first surface mirrors thermally saggedSolar Energy Materials and Solar Cells, 2000
- High rate reactive dc magnetron sputter deposition of Al2O3 filmsJournal of Vacuum Science & Technology A, 1998
- Influence of sputtering gases on the properties of magnetron sputtered tungsten filmsSurface and Coatings Technology, 1996
- Characterization of sputter deposited tungsten films for x-ray multilayersJournal of Vacuum Science & Technology A, 1992
- Optimization of metal-based multilayers for transparent heat mirrorsInternational Journal of Energy Research, 1987