Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Chemical bonding states and solar selective characteristics of unbalanced magnetron sputtered TixM1−x−yNyfilms

Rahman, M.M.ORCID: 0000-0002-6778-7931, Jiang, Z-T, Munroe, P., Chuah, L.S., Zhou, Z-F, Xie, Z., Yin, C.Y., Ibrahim, K., Amri, A., Kabir, H., Haque, M.M., Mondinos, N., Altarawneh, M.ORCID: 0000-0002-2832-3886 and Dlugogorski, B.Z. (2016) Chemical bonding states and solar selective characteristics of unbalanced magnetron sputtered TixM1−x−yNyfilms. RSC Advances, 6 (43). pp. 36373-36383.

PDF - Published Version
Download (922kB) | Preview
Link to Published Version:
*Subscription may be required


Transition metal nitride TixM1−x−yNy (M = Al or AlSi) based thin films are evaluated as solar selective surfaces by correlating their spectral selective features with their crystal structure and chemical bonding state including mechanical strength. Ti0.5N0.5, Ti0.25Al0.25N0.5, and Ti0.25Al0.2Si0.05N0.5 films were synthesized on AISI M2 steel substrates via closed field unbalanced magnetron sputtering technology. These were investigated using XRD, SEM, XPS, UV-Vis, FTIR and nanoindentation techniques. Analysis of the optical properties showed the solar absorptance, in the visible range, of the TixM1−x−yNy films improved significantly from 51% to 81% with AlSi-doping and an increase of solar absorptance of up to 66% was recorded from films doped with Al. Moreover, the Al doping can reduce the thermal emittance in the infrared range from 6.06% to 5.11%, whereas doping with AlSi reduces the emittance to ca. 3.58%. The highest solar selectivity of 22.63 was achieved with TiAlSiN films. Mechanical studies showed enhanced hardness by ∼32%; enhanced yield strength by ∼16% and enhanced plastic deformation by ∼110% of Al and AlSi doped TiN matrix.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: Royal Society of Chemistry
Copyright: © 2016 Royal Society of Chemistry
Item Control Page Item Control Page


Downloads per month over past year